./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --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 cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:49:54,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:49:54,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:49:54,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:49:54,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:49:54,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:49:54,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:49:54,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:49:54,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:49:54,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:49:54,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:49:54,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:49:54,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:49:54,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:49:54,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:49:54,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:49:54,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:49:54,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:49:54,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:49:54,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:49:54,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:49:54,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:49:54,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:49:54,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:49:54,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:49:54,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:49:54,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:49:54,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:49:54,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:49:54,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:49:54,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:49:54,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:49:54,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:49:54,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:49:54,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:49:54,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:49:54,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:49:54,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:49:54,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:49:54,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:49:54,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:49:54,645 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:49:54,670 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:49:54,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:49:54,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:49:54,671 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:49:54,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:49:54,672 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:49:54,673 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:49:54,673 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:49:54,674 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:49:54,674 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:49:54,674 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:49:54,675 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:49:54,675 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:49:54,675 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:49:54,676 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:49:54,676 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:49:54,677 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:49:54,677 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:49:54,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:49:54,678 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:49:54,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:49:54,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:49:54,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:49:54,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:49:54,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:49:54,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:49:54,680 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:49:54,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:49:54,681 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:49:54,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:49:54,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:49:54,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:49:54,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:49:54,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:49:54,683 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:49:54,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:49:54,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:49:54,684 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:49:54,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:49:54,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:49:54,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:49:54,686 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 [2022-11-19 07:49:54,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:49:54,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:49:54,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:49:55,001 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:49:55,002 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:49:55,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2022-11-19 07:49:55,100 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/data/ee8a0c743/5b5b6421a57f4d2e83b3bedd97427299/FLAG4fa8e34b0 [2022-11-19 07:49:55,728 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:49:55,733 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2022-11-19 07:49:55,753 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/data/ee8a0c743/5b5b6421a57f4d2e83b3bedd97427299/FLAG4fa8e34b0 [2022-11-19 07:49:55,941 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/data/ee8a0c743/5b5b6421a57f4d2e83b3bedd97427299 [2022-11-19 07:49:55,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:49:55,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:49:55,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:49:55,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:49:55,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:49:55,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:55" (1/1) ... [2022-11-19 07:49:55,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e598949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:55, skipping insertion in model container [2022-11-19 07:49:55,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:55" (1/1) ... [2022-11-19 07:49:55,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:49:56,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:49:56,574 WARN L234 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_d815e36a-63bd-4e26-9042-050bd7e5f676/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[33021,33034] [2022-11-19 07:49:56,712 WARN L234 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_d815e36a-63bd-4e26-9042-050bd7e5f676/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[49681,49694] [2022-11-19 07:49:56,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:49:56,779 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:49:56,835 WARN L234 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_d815e36a-63bd-4e26-9042-050bd7e5f676/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[33021,33034] [2022-11-19 07:49:56,952 WARN L234 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_d815e36a-63bd-4e26-9042-050bd7e5f676/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[49681,49694] [2022-11-19 07:49:56,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:49:57,010 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:49:57,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:57 WrapperNode [2022-11-19 07:49:57,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:49:57,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:49:57,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:49:57,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:49:57,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:57" (1/1) ... [2022-11-19 07:49:57,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:57" (1/1) ... [2022-11-19 07:49:57,203 INFO L138 Inliner]: procedures = 177, calls = 487, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1686 [2022-11-19 07:49:57,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:49:57,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:49:57,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:49:57,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:49:57,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:57" (1/1) ... [2022-11-19 07:49:57,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:57" (1/1) ... [2022-11-19 07:49:57,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:57" (1/1) ... [2022-11-19 07:49:57,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:57" (1/1) ... [2022-11-19 07:49:57,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:57" (1/1) ... [2022-11-19 07:49:57,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:57" (1/1) ... [2022-11-19 07:49:57,367 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:57" (1/1) ... [2022-11-19 07:49:57,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:57" (1/1) ... [2022-11-19 07:49:57,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:49:57,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:49:57,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:49:57,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:49:57,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:57" (1/1) ... [2022-11-19 07:49:57,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:49:57,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:49:57,451 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:49:57,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:49:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:49:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:49:57,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:49:57,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:49:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:49:57,506 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:49:57,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:49:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:49:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:49:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:49:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:49:57,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:49:57,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:49:57,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:49:57,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:49:57,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:49:57,799 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:49:57,801 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:49:59,958 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:50:00,627 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:50:00,627 INFO L300 CfgBuilder]: Removed 100 assume(true) statements. [2022-11-19 07:50:00,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:00 BoogieIcfgContainer [2022-11-19 07:50:00,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:50:00,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:50:00,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:50:00,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:50:00,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:49:55" (1/3) ... [2022-11-19 07:50:00,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aab80ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:00, skipping insertion in model container [2022-11-19 07:50:00,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:57" (2/3) ... [2022-11-19 07:50:00,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aab80ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:00, skipping insertion in model container [2022-11-19 07:50:00,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:00" (3/3) ... [2022-11-19 07:50:00,650 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-3.i [2022-11-19 07:50:00,673 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:50:00,674 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 07:50:00,770 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:50:00,782 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1f274d5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:50:00,783 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 07:50:00,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 07:50:00,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 07:50:00,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:50:00,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 07:50:00,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:50:00,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:50:00,810 INFO L85 PathProgramCache]: Analyzing trace with hash 274883441, now seen corresponding path program 1 times [2022-11-19 07:50:00,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:50:00,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558026741] [2022-11-19 07:50:00,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:00,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:50:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:00,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:50:00,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558026741] [2022-11-19 07:50:00,984 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 07:50:00,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466286859] [2022-11-19 07:50:00,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:00,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:50:00,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:50:00,993 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:50:01,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:50:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:01,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 07:50:01,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:50:01,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:50:01,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:50:01,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466286859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:50:01,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:50:01,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:50:01,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164675294] [2022-11-19 07:50:01,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:50:01,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:50:01,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:50:01,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:50:01,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:50:01,397 INFO L87 Difference]: Start difference. First operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:02,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:50:02,634 INFO L93 Difference]: Finished difference Result 353 states and 632 transitions. [2022-11-19 07:50:02,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:50:02,644 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-19 07:50:02,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:50:02,659 INFO L225 Difference]: With dead ends: 353 [2022-11-19 07:50:02,659 INFO L226 Difference]: Without dead ends: 150 [2022-11-19 07:50:02,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:50:02,669 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:50:02,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-19 07:50:02,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-19 07:50:02,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-19 07:50:02,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 07:50:02,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-19 07:50:02,737 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-19 07:50:02,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:50:02,738 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-19 07:50:02,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:02,739 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-19 07:50:02,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 07:50:02,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:50:02,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:50:02,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:50:02,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 07:50:02,948 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:50:02,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:50:02,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1671934868, now seen corresponding path program 1 times [2022-11-19 07:50:02,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:50:02,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130344145] [2022-11-19 07:50:02,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:02,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:50:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:03,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:50:03,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130344145] [2022-11-19 07:50:03,022 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 07:50:03,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456562631] [2022-11-19 07:50:03,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:03,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:50:03,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:50:03,028 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:50:03,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:50:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:03,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:50:03,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:50:03,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:50:03,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:50:03,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456562631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:50:03,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:50:03,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:50:03,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008284311] [2022-11-19 07:50:03,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:50:03,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:50:03,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:50:03,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:50:03,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:50:03,437 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:05,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:50:05,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:50:05,769 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-19 07:50:05,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:50:05,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-19 07:50:05,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:50:05,778 INFO L225 Difference]: With dead ends: 342 [2022-11-19 07:50:05,779 INFO L226 Difference]: Without dead ends: 290 [2022-11-19 07:50:05,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:50:05,781 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:50:05,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-19 07:50:05,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-19 07:50:05,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-19 07:50:05,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 07:50:05,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-19 07:50:05,806 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-19 07:50:05,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:50:05,807 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-19 07:50:05,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:05,807 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-19 07:50:05,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-19 07:50:05,811 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:50:05,811 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, 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] [2022-11-19 07:50:05,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:50:06,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:50:06,018 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:50:06,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:50:06,019 INFO L85 PathProgramCache]: Analyzing trace with hash 700872651, now seen corresponding path program 1 times [2022-11-19 07:50:06,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:50:06,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173227904] [2022-11-19 07:50:06,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:06,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:50:06,329 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:50:06,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2137287980] [2022-11-19 07:50:06,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:06,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:50:06,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:50:06,334 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:50:06,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:50:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:07,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:50:07,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:50:07,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:50:07,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:50:07,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:50:07,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:50:07,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173227904] [2022-11-19 07:50:07,967 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:50:07,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137287980] [2022-11-19 07:50:07,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137287980] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:50:07,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1479381788] [2022-11-19 07:50:07,987 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-19 07:50:07,987 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:50:07,991 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:50:07,996 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:50:07,997 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:50:08,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,149 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:50:08,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-19 07:50:08,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 07:50:08,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:50:08,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:50:08,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,231 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:50:08,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-19 07:50:08,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,285 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:50:08,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 07:50:08,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:50:08,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-19 07:50:08,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:50:08,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 07:50:08,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:08,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 07:50:08,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:50:09,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:50:09,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:50:09,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 07:50:09,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:09,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 07:50:09,618 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:50:16,817 WARN L233 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:50:26,213 WARN L233 SmtUtils]: Spent 7.27s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:50:26,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1479381788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:50:26,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:50:26,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-19 07:50:26,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341496726] [2022-11-19 07:50:26,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:50:26,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:50:26,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:50:26,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:50:26,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-19 07:50:26,222 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:28,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:50:31,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:50:32,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:50:32,309 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2022-11-19 07:50:32,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:50:32,310 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-19 07:50:32,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:50:32,312 INFO L225 Difference]: With dead ends: 310 [2022-11-19 07:50:32,312 INFO L226 Difference]: Without dead ends: 161 [2022-11-19 07:50:32,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-19 07:50:32,314 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 7 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 81 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:50:32,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 586 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 81 Unchecked, 6.0s Time] [2022-11-19 07:50:32,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-19 07:50:32,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-19 07:50:32,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 07:50:32,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-19 07:50:32,350 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-19 07:50:32,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:50:32,351 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-19 07:50:32,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:32,351 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-19 07:50:32,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 07:50:32,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:50:32,357 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, 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] [2022-11-19 07:50:32,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-19 07:50:32,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:50:32,565 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:50:32,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:50:32,566 INFO L85 PathProgramCache]: Analyzing trace with hash -385397690, now seen corresponding path program 1 times [2022-11-19 07:50:32,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:50:32,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557708094] [2022-11-19 07:50:32,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:32,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:50:32,742 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:50:32,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844656880] [2022-11-19 07:50:32,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:32,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:50:32,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:50:32,744 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:50:32,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:50:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:33,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:50:33,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:50:34,106 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 07:50:34,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:50:34,236 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 07:50:34,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:50:34,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557708094] [2022-11-19 07:50:34,237 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:50:34,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844656880] [2022-11-19 07:50:34,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844656880] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:50:34,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1989257921] [2022-11-19 07:50:34,242 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-19 07:50:34,242 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:50:34,243 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:50:34,243 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:50:34,244 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:50:34,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,366 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:50:34,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-19 07:50:34,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 07:50:34,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,445 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 07:50:34,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-19 07:50:34,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:50:34,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,523 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:50:34,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 07:50:34,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,540 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:50:34,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-19 07:50:34,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:50:34,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:50:34,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:50:34,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:34,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 07:50:35,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-19 07:50:35,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 07:50:35,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 07:50:35,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 07:50:35,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 07:50:35,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 07:50:35,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 07:50:35,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 07:50:35,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,611 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 07:50:35,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-19 07:50:35,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:35,715 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 07:50:35,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-19 07:50:36,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:50:36,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:50:36,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 07:50:36,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-19 07:50:36,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376293 [2022-11-19 07:50:36,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376293 [2022-11-19 07:50:36,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 07:50:36,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 07:50:36,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 07:50:36,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 07:50:36,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 07:50:36,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:36,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:37,045 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 07:50:37,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-19 07:50:37,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:37,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:37,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:37,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-11-19 07:50:37,481 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-19 07:50:37,628 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:50:46,119 WARN L233 SmtUtils]: Spent 5.30s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:50:53,610 WARN L233 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:51:05,789 WARN L233 SmtUtils]: Spent 8.02s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:51:23,466 WARN L233 SmtUtils]: Spent 11.48s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:51:36,428 WARN L233 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:51:37,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1989257921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:51:37,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:51:37,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-19 07:51:37,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475521931] [2022-11-19 07:51:37,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:51:37,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 07:51:37,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:51:37,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 07:51:37,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 07:51:37,404 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:51:42,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:51:42,999 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-19 07:51:43,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 07:51:43,000 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-11-19 07:51:43,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:51:43,001 INFO L225 Difference]: With dead ends: 315 [2022-11-19 07:51:43,002 INFO L226 Difference]: Without dead ends: 166 [2022-11-19 07:51:43,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 59.8s TimeCoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 07:51:43,003 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 8 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 193 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:51:43,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 616 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 193 Unchecked, 5.5s Time] [2022-11-19 07:51:43,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-19 07:51:43,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-19 07:51:43,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-19 07:51:43,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-19 07:51:43,036 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-19 07:51:43,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:51:43,037 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-19 07:51:43,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:51:43,037 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-19 07:51:43,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-19 07:51:43,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:51:43,040 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, 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] [2022-11-19 07:51:43,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:51:43,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:51:43,249 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:51:43,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:51:43,250 INFO L85 PathProgramCache]: Analyzing trace with hash -102741374, now seen corresponding path program 1 times [2022-11-19 07:51:43,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:51:43,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28552445] [2022-11-19 07:51:43,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:51:43,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:51:43,415 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:51:43,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1547487590] [2022-11-19 07:51:43,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:51:43,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:51:43,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:51:43,421 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:51:43,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d815e36a-63bd-4e26-9042-050bd7e5f676/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:51:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:51:44,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:51:44,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:51:44,922 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 07:51:44,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:51:45,066 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 07:51:45,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:51:45,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28552445] [2022-11-19 07:51:45,066 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:51:45,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547487590] [2022-11-19 07:51:45,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547487590] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:51:45,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1125052866] [2022-11-19 07:51:45,070 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-19 07:51:45,071 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:51:45,071 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:51:45,071 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:51:45,071 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:51:45,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,174 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:51:45,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-19 07:51:45,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 07:51:45,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:51:45,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,259 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 07:51:45,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-19 07:51:45,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,320 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:51:45,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 07:51:45,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:51:45,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-19 07:51:45,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:51:45,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:51:45,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 07:51:45,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 07:51:45,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:51:45,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 07:51:45,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 07:51:45,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:45,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 07:51:46,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 07:51:46,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 07:51:46,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,144 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 07:51:46,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-19 07:51:46,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,246 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 07:51:46,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-19 07:51:46,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 07:51:46,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 07:51:46,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 07:51:46,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:51:46,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 07:51:46,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 07:51:46,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-19 07:51:46,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 07:51:46,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 07:51:46,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 07:51:46,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 07:51:46,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-19 07:51:46,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 07:51:46,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 07:51:46,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:46,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-19 07:51:47,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 07:51:47,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 07:51:48,706 INFO L217 Elim1Store]: Index analysis took 1357 ms [2022-11-19 07:51:56,761 WARN L233 SmtUtils]: Spent 8.05s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:51:56,762 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-19 07:51:56,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-11-19 07:51:58,314 INFO L217 Elim1Store]: Index analysis took 1329 ms [2022-11-19 07:51:59,481 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-19 07:51:59,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-11-19 07:55:40,934 WARN L233 SmtUtils]: Spent 3.69m on a formula simplification. DAG size of input: 198 DAG size of output: 104 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:55:40,935 INFO L321 Elim1Store]: treesize reduction 1636, result has 23.4 percent of original size [2022-11-19 07:55:40,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 7904 treesize of output 5832 [2022-11-19 07:55:41,683 INFO L217 Elim1Store]: Index analysis took 323 ms [2022-11-19 07:57:43,541 WARN L233 SmtUtils]: Spent 2.03m on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:57:43,541 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-19 07:57:43,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 7135 treesize of output 5975 [2022-11-19 07:57:51,603 INFO L217 Elim1Store]: Index analysis took 6010 ms