./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array8_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d46cd-18f9-4bab-9f52-518e44c06a0a/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d46cd-18f9-4bab-9f52-518e44c06a0a/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d46cd-18f9-4bab-9f52-518e44c06a0a/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d46cd-18f9-4bab-9f52-518e44c06a0a/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/array-patterns/array8_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d46cd-18f9-4bab-9f52-518e44c06a0a/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d46cd-18f9-4bab-9f52-518e44c06a0a/bin/ukojak-rkRKPMF4O4 --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 06625eaf591a62e295090a882d83c1e11aaafca7ac8895e7d4adcf51d5b26e02 --- 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-2329fc7 [2022-12-14 19:23:58,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 19:23:58,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 19:23:58,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 19:23:58,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 19:23:58,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 19:23:58,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 19:23:58,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 19:23:58,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 19:23:58,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 19:23:58,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 19:23:58,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 19:23:58,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 19:23:58,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 19:23:58,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 19:23:58,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 19:23:58,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 19:23:58,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 19:23:58,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 19:23:58,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 19:23:58,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 19:23:58,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 19:23:58,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 19:23:58,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 19:23:58,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 19:23:58,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 19:23:58,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 19:23:58,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 19:23:58,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 19:23:58,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 19:23:58,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 19:23:58,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 19:23:58,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 19:23:58,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 19:23:58,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 19:23:58,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 19:23:58,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 19:23:58,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 19:23:58,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 19:23:58,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 19:23:58,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 19:23:58,576 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d46cd-18f9-4bab-9f52-518e44c06a0a/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-14 19:23:58,595 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 19:23:58,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 19:23:58,602 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 19:23:58,602 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 19:23:58,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 19:23:58,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 19:23:58,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 19:23:58,604 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 19:23:58,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 19:23:58,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 19:23:58,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 19:23:58,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 19:23:58,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 19:23:58,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 19:23:58,605 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 19:23:58,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 19:23:58,605 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 19:23:58,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 19:23:58,606 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 19:23:58,606 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 19:23:58,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 19:23:58,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 19:23:58,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 19:23:58,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 19:23:58,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 19:23:58,607 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 19:23:58,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 19:23:58,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 19:23:58,607 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_c55d46cd-18f9-4bab-9f52-518e44c06a0a/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d46cd-18f9-4bab-9f52-518e44c06a0a/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06625eaf591a62e295090a882d83c1e11aaafca7ac8895e7d4adcf51d5b26e02 [2022-12-14 19:23:58,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 19:23:58,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 19:23:58,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 19:23:58,830 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 19:23:58,830 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 19:23:58,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d46cd-18f9-4bab-9f52-518e44c06a0a/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/array-patterns/array8_pattern.c [2022-12-14 19:24:01,377 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 19:24:01,525 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 19:24:01,526 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d46cd-18f9-4bab-9f52-518e44c06a0a/sv-benchmarks/c/array-patterns/array8_pattern.c [2022-12-14 19:24:01,530 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d46cd-18f9-4bab-9f52-518e44c06a0a/bin/ukojak-rkRKPMF4O4/data/1e00a6fd5/d4c4f8c219f44064ac115a330ce6d014/FLAGd34223dc9 [2022-12-14 19:24:01,948 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d46cd-18f9-4bab-9f52-518e44c06a0a/bin/ukojak-rkRKPMF4O4/data/1e00a6fd5/d4c4f8c219f44064ac115a330ce6d014 [2022-12-14 19:24:01,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 19:24:01,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 19:24:01,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 19:24:01,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 19:24:01,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 19:24:01,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:24:01" (1/1) ... [2022-12-14 19:24:01,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b63c407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:01, skipping insertion in model container [2022-12-14 19:24:01,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:24:01" (1/1) ... [2022-12-14 19:24:01,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 19:24:01,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 19:24:02,066 WARN L237 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_c55d46cd-18f9-4bab-9f52-518e44c06a0a/sv-benchmarks/c/array-patterns/array8_pattern.c[1321,1334] [2022-12-14 19:24:02,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 19:24:02,084 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 19:24:02,092 WARN L237 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_c55d46cd-18f9-4bab-9f52-518e44c06a0a/sv-benchmarks/c/array-patterns/array8_pattern.c[1321,1334] [2022-12-14 19:24:02,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 19:24:02,107 INFO L208 MainTranslator]: Completed translation [2022-12-14 19:24:02,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:02 WrapperNode [2022-12-14 19:24:02,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 19:24:02,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 19:24:02,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 19:24:02,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 19:24:02,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:02" (1/1) ... [2022-12-14 19:24:02,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:02" (1/1) ... [2022-12-14 19:24:02,130 INFO L138 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2022-12-14 19:24:02,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 19:24:02,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 19:24:02,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 19:24:02,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 19:24:02,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:02" (1/1) ... [2022-12-14 19:24:02,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:02" (1/1) ... [2022-12-14 19:24:02,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:02" (1/1) ... [2022-12-14 19:24:02,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:02" (1/1) ... [2022-12-14 19:24:02,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:02" (1/1) ... [2022-12-14 19:24:02,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:02" (1/1) ... [2022-12-14 19:24:02,145 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:02" (1/1) ... [2022-12-14 19:24:02,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:02" (1/1) ... [2022-12-14 19:24:02,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 19:24:02,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 19:24:02,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 19:24:02,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 19:24:02,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:24:02" (1/1) ... [2022-12-14 19:24:02,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 19:24:02,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d46cd-18f9-4bab-9f52-518e44c06a0a/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 19:24:02,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d46cd-18f9-4bab-9f52-518e44c06a0a/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 19:24:02,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55d46cd-18f9-4bab-9f52-518e44c06a0a/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 19:24:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 19:24:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 19:24:02,197 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 19:24:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 19:24:02,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 19:24:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 19:24:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 19:24:02,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 19:24:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 19:24:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 19:24:02,254 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 19:24:02,255 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 19:24:02,366 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 19:24:02,405 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 19:24:02,405 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 19:24:02,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:24:02 BoogieIcfgContainer [2022-12-14 19:24:02,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 19:24:02,407 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 19:24:02,408 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 19:24:02,415 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 19:24:02,415 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:24:02" (1/1) ... [2022-12-14 19:24:02,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 19:24:02,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:24:02,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2022-12-14 19:24:02,462 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2022-12-14 19:24:02,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 19:24:02,465 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:24:02,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:24:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:24:02,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:24:02,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:24:02,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2022-12-14 19:24:02,591 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-12-14 19:24:02,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 19:24:02,592 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:24:02,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:24:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:24:02,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 19:24:02,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 19:24:02,746 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:24:02,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:24:02,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2022-12-14 19:24:02,797 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-12-14 19:24:02,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 19:24:02,798 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:24:02,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:24:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:24:02,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 19:24:02,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 19:24:02,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:24:03,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:24:03,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2022-12-14 19:24:03,015 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-12-14 19:24:03,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 19:24:03,015 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:24:03,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:24:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:24:03,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 50 conjunts are in the unsatisfiable core [2022-12-14 19:24:03,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 19:24:03,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 19:24:03,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:03,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-12-14 19:24:03,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 19:24:03,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:03,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 19:24:03,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 54 [2022-12-14 19:24:03,697 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 19:24:03,703 INFO L321 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-12-14 19:24:03,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 15 [2022-12-14 19:24:03,762 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:24:04,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:24:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 28 states and 42 transitions. [2022-12-14 19:24:04,844 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2022-12-14 19:24:04,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 19:24:04,846 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:24:04,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:24:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:24:04,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 19:24:04,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 19:24:04,997 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:24:05,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:24:05,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 35 states and 51 transitions. [2022-12-14 19:24:05,772 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 51 transitions. [2022-12-14 19:24:05,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 19:24:05,773 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:24:05,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:24:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:24:05,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 70 conjunts are in the unsatisfiable core [2022-12-14 19:24:05,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 19:24:05,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 19:24:05,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:05,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-12-14 19:24:05,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 19:24:05,929 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 19 treesize of output 18 [2022-12-14 19:24:06,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:06,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:06,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 39 [2022-12-14 19:24:06,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:06,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:06,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:06,582 INFO L321 Elim1Store]: treesize reduction 76, result has 44.5 percent of original size [2022-12-14 19:24:06,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 123 [2022-12-14 19:24:07,461 INFO L321 Elim1Store]: treesize reduction 10, result has 86.3 percent of original size [2022-12-14 19:24:07,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 135 treesize of output 131 [2022-12-14 19:24:07,809 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:24:10,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:24:10,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 43 states and 69 transitions. [2022-12-14 19:24:10,992 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 69 transitions. [2022-12-14 19:24:10,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 19:24:10,992 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:24:10,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:24:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:24:11,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 19:24:11,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 19:24:11,384 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:24:14,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:24:14,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 52 states and 86 transitions. [2022-12-14 19:24:14,587 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 86 transitions. [2022-12-14 19:24:14,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 19:24:14,588 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:24:14,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:24:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:24:14,663 WARN L261 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 84 conjunts are in the unsatisfiable core [2022-12-14 19:24:14,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 19:24:14,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 19:24:14,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:14,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-12-14 19:24:14,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 20 [2022-12-14 19:24:14,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 19:24:14,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 19:24:14,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:14,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:14,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 45 [2022-12-14 19:24:14,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:14,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:14,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:14,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:14,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 63 [2022-12-14 19:24:15,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:15,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:15,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:15,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:15,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:24:15,775 INFO L321 Elim1Store]: treesize reduction 124, result has 40.7 percent of original size [2022-12-14 19:24:15,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 126 treesize of output 153 [2022-12-14 19:24:17,663 INFO L321 Elim1Store]: treesize reduction 10, result has 92.4 percent of original size [2022-12-14 19:24:17,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 191 treesize of output 205 [2022-12-14 19:24:18,681 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:24:34,338 WARN L233 SmtUtils]: Spent 12.47s on a formula simplification. DAG size of input: 100 DAG size of output: 91 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:24:56,634 WARN L233 SmtUtils]: Spent 13.47s on a formula simplification. DAG size of input: 102 DAG size of output: 97 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:25:02,097 WARN L233 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 92 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:25:15,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 19:25:29,453 WARN L233 SmtUtils]: Spent 13.38s on a formula simplification. DAG size of input: 102 DAG size of output: 93 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:25:53,269 WARN L233 SmtUtils]: Spent 19.86s on a formula simplification. DAG size of input: 104 DAG size of output: 99 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:26:17,218 WARN L233 SmtUtils]: Spent 13.16s on a formula simplification. DAG size of input: 103 DAG size of output: 94 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:26:39,575 WARN L233 SmtUtils]: Spent 15.56s on a formula simplification. DAG size of input: 105 DAG size of output: 100 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:26:56,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:26:56,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 60 states and 103 transitions. [2022-12-14 19:26:56,014 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 103 transitions. [2022-12-14 19:26:56,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 19:26:56,015 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:26:56,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:26:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:26:56,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 68 conjunts are in the unsatisfiable core [2022-12-14 19:26:56,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 19:26:56,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 19:26:56,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:26:56,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-12-14 19:26:56,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 19:26:56,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:26:56,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 19:26:56,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 57 [2022-12-14 19:26:57,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:26:57,219 INFO L321 Elim1Store]: treesize reduction 68, result has 25.3 percent of original size [2022-12-14 19:26:57,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 79 [2022-12-14 19:26:57,809 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 19:26:57,811 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-12-14 19:26:57,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 15 [2022-12-14 19:26:57,825 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:27:01,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:27:01,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 54 states and 89 transitions. [2022-12-14 19:27:01,124 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 89 transitions. [2022-12-14 19:27:01,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 19:27:01,125 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:27:01,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:27:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:27:01,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 19:27:01,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 19:27:02,078 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:27:19,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 19:27:33,819 WARN L233 SmtUtils]: Spent 7.14s on a formula simplification. DAG size of input: 94 DAG size of output: 93 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:27:40,602 WARN L233 SmtUtils]: Spent 5.78s on a formula simplification that was a NOOP. DAG size: 94 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:27:50,708 WARN L233 SmtUtils]: Spent 9.60s on a formula simplification. DAG size of input: 98 DAG size of output: 95 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:28:03,391 WARN L233 SmtUtils]: Spent 6.61s on a formula simplification. DAG size of input: 99 DAG size of output: 96 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:28:09,595 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification that was a NOOP. DAG size: 97 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:28:12,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:28:12,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 64 states and 111 transitions. [2022-12-14 19:28:12,294 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 111 transitions. [2022-12-14 19:28:12,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 19:28:12,295 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:28:12,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:28:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:28:12,358 WARN L261 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 96 conjunts are in the unsatisfiable core [2022-12-14 19:28:12,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 19:28:12,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 19:28:12,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:12,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-12-14 19:28:12,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 20 [2022-12-14 19:28:12,404 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 19:28:12,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 19:28:12,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:12,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:12,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 45 [2022-12-14 19:28:12,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:12,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:12,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:12,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:12,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 75 [2022-12-14 19:28:14,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:14,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:14,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:14,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:14,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:14,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:14,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 87 [2022-12-14 19:28:29,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:29,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:29,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:29,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:29,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:29,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:29,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:28:29,490 INFO L321 Elim1Store]: treesize reduction 156, result has 44.5 percent of original size [2022-12-14 19:28:29,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 13 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 12 case distinctions, treesize of input 144 treesize of output 199 [2022-12-14 19:29:44,907 INFO L321 Elim1Store]: treesize reduction 20, result has 85.0 percent of original size [2022-12-14 19:29:44,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 7 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 13 case distinctions, treesize of input 237 treesize of output 215 [2022-12-14 19:29:46,383 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:30:25,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 19:30:27,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 19:31:53,435 WARN L233 SmtUtils]: Spent 1.19m on a formula simplification. DAG size of input: 119 DAG size of output: 107 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:32:16,760 WARN L233 SmtUtils]: Spent 14.49s on a formula simplification. DAG size of input: 121 DAG size of output: 108 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:32:23,744 WARN L233 SmtUtils]: Spent 6.25s on a formula simplification that was a NOOP. DAG size: 108 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:32:29,925 WARN L233 SmtUtils]: Spent 5.44s on a formula simplification that was a NOOP. DAG size: 108 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:33:05,877 WARN L233 SmtUtils]: Spent 35.69s on a formula simplification. DAG size of input: 121 DAG size of output: 109 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:33:26,831 WARN L233 SmtUtils]: Spent 15.75s on a formula simplification. DAG size of input: 123 DAG size of output: 110 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:33:34,129 WARN L233 SmtUtils]: Spent 6.73s on a formula simplification that was a NOOP. DAG size: 110 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:34:11,244 WARN L233 SmtUtils]: Spent 31.71s on a formula simplification. DAG size of input: 130 DAG size of output: 116 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:34:37,722 WARN L233 SmtUtils]: Spent 18.73s on a formula simplification. DAG size of input: 132 DAG size of output: 111 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:34:50,224 WARN L233 SmtUtils]: Spent 11.77s on a formula simplification that was a NOOP. DAG size: 117 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:34:56,993 WARN L233 SmtUtils]: Spent 6.07s on a formula simplification that was a NOOP. DAG size: 111 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:35:33,178 WARN L233 SmtUtils]: Spent 35.91s on a formula simplification. DAG size of input: 124 DAG size of output: 102 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:35:53,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 19:35:54,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:35:54,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 73 states and 133 transitions. [2022-12-14 19:35:54,266 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 133 transitions. [2022-12-14 19:35:54,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 19:35:54,267 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:35:54,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:35:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:35:54,340 WARN L261 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 100 conjunts are in the unsatisfiable core [2022-12-14 19:35:54,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 19:35:54,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 19:35:54,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:54,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-12-14 19:35:54,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 20 [2022-12-14 19:35:54,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 19:35:54,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 19:35:54,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:54,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:54,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 45 [2022-12-14 19:35:54,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:54,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:54,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:54,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:54,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 63 [2022-12-14 19:35:54,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:54,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:54,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:54,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:54,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:54,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:54,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 87 [2022-12-14 19:35:57,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:57,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:57,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:57,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:57,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:57,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:57,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:35:57,893 INFO L321 Elim1Store]: treesize reduction 156, result has 44.5 percent of original size [2022-12-14 19:35:57,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 13 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 12 case distinctions, treesize of input 144 treesize of output 199 [2022-12-14 19:36:07,118 INFO L321 Elim1Store]: treesize reduction 20, result has 85.0 percent of original size [2022-12-14 19:36:07,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 7 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 13 case distinctions, treesize of input 275 treesize of output 241 [2022-12-14 19:36:10,254 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:36:39,716 WARN L233 SmtUtils]: Spent 22.77s on a formula simplification. DAG size of input: 136 DAG size of output: 121 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:36:51,482 WARN L233 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 122 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:36:53,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 19:37:00,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 19:37:00,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:37:00,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 75 states and 138 transitions. [2022-12-14 19:37:00,977 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 138 transitions. [2022-12-14 19:37:00,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 19:37:00,978 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:37:00,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:37:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:37:01,055 WARN L261 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 95 conjunts are in the unsatisfiable core [2022-12-14 19:37:01,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 19:37:01,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-12-14 19:37:01,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:37:01,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-12-14 19:37:01,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 19:37:01,108 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 19 treesize of output 18 [2022-12-14 19:37:01,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:37:01,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:37:01,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 39 [2022-12-14 19:37:02,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:37:02,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:37:02,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:37:02,778 INFO L321 Elim1Store]: treesize reduction 89, result has 37.8 percent of original size [2022-12-14 19:37:02,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 114 treesize of output 119 [2022-12-14 19:37:04,919 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 19:37:04,925 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 19:37:04,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 19:37:04,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 19:37:05,013 INFO L321 Elim1Store]: treesize reduction 316, result has 18.6 percent of original size [2022-12-14 19:37:05,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 151 treesize of output 150 [2022-12-14 19:37:07,103 INFO L321 Elim1Store]: treesize reduction 130, result has 34.0 percent of original size [2022-12-14 19:37:07,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 124 treesize of output 128 [2022-12-14 19:37:07,476 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:37:20,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:37:20,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 83 states and 153 transitions. [2022-12-14 19:37:20,954 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 153 transitions. [2022-12-14 19:37:20,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 19:37:20,955 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:37:20,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:37:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:37:21,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 19:37:21,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 19:37:23,283 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:37:46,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 19:38:09,546 WARN L233 SmtUtils]: Spent 14.90s on a formula simplification. DAG size of input: 109 DAG size of output: 106 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:38:28,459 WARN L233 SmtUtils]: Spent 10.97s on a formula simplification. DAG size of input: 113 DAG size of output: 108 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:38:35,791 WARN L233 SmtUtils]: Spent 5.73s on a formula simplification that was a NOOP. DAG size: 109 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:38:52,439 WARN L233 SmtUtils]: Spent 15.46s on a formula simplification. DAG size of input: 120 DAG size of output: 115 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 19:39:05,126 WARN L233 SmtUtils]: Spent 10.86s on a formula simplification that was a NOOP. DAG size: 116 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)