./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifeqn1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/bin/ukojak-92XMlrwhuB --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 6c377c3922cafbc07c158cb252290a97b70e1cbfc6e9de773d7729c460f56857 --- 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-dbf71c6-m [2022-10-17 16:53:26,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:53:26,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:53:26,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:53:26,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:53:26,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:53:26,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:53:26,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:53:26,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:53:26,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:53:26,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:53:26,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:53:26,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:53:26,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:53:26,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:53:26,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:53:26,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:53:26,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:53:26,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:53:26,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:53:26,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:53:26,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:53:26,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:53:26,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:53:26,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:53:26,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:53:26,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:53:26,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:53:26,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:53:26,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:53:26,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:53:26,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:53:26,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:53:26,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:53:26,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:53:26,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:53:26,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:53:26,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:53:26,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:53:26,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:53:26,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:53:26,256 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:53:26,301 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:53:26,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:53:26,302 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:53:26,303 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:53:26,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:53:26,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:53:26,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:53:26,304 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:53:26,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:53:26,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:53:26,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:53:26,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:53:26,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:53:26,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:53:26,307 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:53:26,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:53:26,307 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:53:26,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:53:26,308 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:53:26,308 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:53:26,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:53:26,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:53:26,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:53:26,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:53:26,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:53:26,309 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:53:26,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:53:26,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:53:26,310 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_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c377c3922cafbc07c158cb252290a97b70e1cbfc6e9de773d7729c460f56857 [2022-10-17 16:53:26,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:53:26,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:53:26,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:53:26,643 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:53:26,644 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:53:26,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/array-fpi/ifeqn1.c [2022-10-17 16:53:26,715 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/bin/ukojak-92XMlrwhuB/data/3932e71c1/320c27212bf14b189b12e8a1fe95f5d9/FLAG5b56e0428 [2022-10-17 16:53:27,186 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:53:27,186 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/sv-benchmarks/c/array-fpi/ifeqn1.c [2022-10-17 16:53:27,193 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/bin/ukojak-92XMlrwhuB/data/3932e71c1/320c27212bf14b189b12e8a1fe95f5d9/FLAG5b56e0428 [2022-10-17 16:53:27,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/bin/ukojak-92XMlrwhuB/data/3932e71c1/320c27212bf14b189b12e8a1fe95f5d9 [2022-10-17 16:53:27,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:53:27,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:53:27,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:53:27,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:53:27,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:53:27,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:53:27" (1/1) ... [2022-10-17 16:53:27,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62644f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:27, skipping insertion in model container [2022-10-17 16:53:27,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:53:27" (1/1) ... [2022-10-17 16:53:27,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:53:27,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:53:27,827 WARN L230 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_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/sv-benchmarks/c/array-fpi/ifeqn1.c[589,602] [2022-10-17 16:53:27,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:53:27,857 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:53:27,870 WARN L230 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_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/sv-benchmarks/c/array-fpi/ifeqn1.c[589,602] [2022-10-17 16:53:27,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:53:27,893 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:53:27,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:27 WrapperNode [2022-10-17 16:53:27,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:53:27,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:53:27,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:53:27,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:53:27,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:27" (1/1) ... [2022-10-17 16:53:27,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:27" (1/1) ... [2022-10-17 16:53:27,933 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-10-17 16:53:27,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:53:27,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:53:27,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:53:27,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:53:27,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:27" (1/1) ... [2022-10-17 16:53:27,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:27" (1/1) ... [2022-10-17 16:53:27,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:27" (1/1) ... [2022-10-17 16:53:27,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:27" (1/1) ... [2022-10-17 16:53:27,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:27" (1/1) ... [2022-10-17 16:53:27,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:27" (1/1) ... [2022-10-17 16:53:27,960 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:27" (1/1) ... [2022-10-17 16:53:27,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:27" (1/1) ... [2022-10-17 16:53:27,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:53:27,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:53:27,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:53:27,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:53:27,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:53:27" (1/1) ... [2022-10-17 16:53:27,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:53:27,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:53:27,998 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:53:28,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c030a4c4-81fd-49a1-bae9-c9b8c58ed5db/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:53:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:53:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:53:28,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:53:28,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:53:28,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:53:28,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:53:28,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:53:28,113 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:53:28,115 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:53:28,321 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:53:28,432 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:53:28,432 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-17 16:53:28,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:53:28 BoogieIcfgContainer [2022-10-17 16:53:28,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:53:28,436 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:53:28,436 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:53:28,455 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:53:28,457 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:53:28" (1/1) ... [2022-10-17 16:53:28,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:53:28,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:28,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2022-10-17 16:53:28,534 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2022-10-17 16:53:28,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:53:28,537 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:28,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:28,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 16:53:28,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:53:28,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:53:28,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:28,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2022-10-17 16:53:28,988 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2022-10-17 16:53:28,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:53:28,988 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:28,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:29,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 16:53:29,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:53:29,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:53:29,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:29,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2022-10-17 16:53:29,232 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2022-10-17 16:53:29,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:53:29,233 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:29,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:29,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 16:53:29,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:53:29,431 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 16:53:29,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:53:29,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:29,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 16 states and 26 transitions. [2022-10-17 16:53:29,891 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 26 transitions. [2022-10-17 16:53:29,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:53:29,891 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:29,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:29,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 16:53:29,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:53:30,122 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:53:30,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:30,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 19 states and 31 transitions. [2022-10-17 16:53:30,614 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 31 transitions. [2022-10-17 16:53:30,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:53:30,614 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:30,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:30,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-17 16:53:30,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:53:30,891 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 16:53:30,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-17 16:53:31,001 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:53:31,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:31,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 20 states and 31 transitions. [2022-10-17 16:53:31,280 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 31 transitions. [2022-10-17 16:53:31,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:53:31,280 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:31,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:31,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 16:53:31,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:53:31,415 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:53:31,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:31,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 24 states and 38 transitions. [2022-10-17 16:53:31,878 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2022-10-17 16:53:31,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:53:31,881 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:31,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:31,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 16:53:31,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:53:32,143 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:53:33,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:33,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 28 states and 45 transitions. [2022-10-17 16:53:33,038 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 45 transitions. [2022-10-17 16:53:33,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:53:33,038 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:33,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:33,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-17 16:53:33,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:53:33,645 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 16:53:33,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 16:53:33,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-10-17 16:53:33,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 16:53:33,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-10-17 16:53:33,932 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:53:35,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:35,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 29 states and 46 transitions. [2022-10-17 16:53:35,634 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2022-10-17 16:53:35,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:53:35,635 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:35,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:35,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 39 conjunts are in the unsatisfiable core [2022-10-17 16:53:35,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:53:35,824 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 16:53:35,910 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 16:53:36,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 16:53:36,003 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-17 16:53:36,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 16:53:36,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 16:53:36,310 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-10-17 16:53:36,310 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 38 treesize of output 32 [2022-10-17 16:53:36,857 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-17 16:53:36,860 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 62 treesize of output 34 [2022-10-17 16:53:36,866 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:53:41,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:41,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 36 states and 70 transitions. [2022-10-17 16:53:41,103 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 70 transitions. [2022-10-17 16:53:41,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:53:41,105 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:41,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:41,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 41 conjunts are in the unsatisfiable core [2022-10-17 16:53:41,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:53:41,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 16:53:41,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 16:53:41,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 16:53:41,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-17 16:53:41,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 16:53:41,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 16:53:41,427 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-10-17 16:53:41,427 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 38 treesize of output 32 [2022-10-17 16:53:41,630 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-17 16:53:41,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 62 treesize of output 34 [2022-10-17 16:53:41,635 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:53:41,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:41,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 37 states and 71 transitions. [2022-10-17 16:53:41,667 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 71 transitions. [2022-10-17 16:53:41,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:53:41,668 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:41,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:41,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 43 conjunts are in the unsatisfiable core [2022-10-17 16:53:41,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:53:41,852 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 16:53:41,868 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 16:53:41,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 16:53:41,886 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2022-10-17 16:53:42,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 16:53:42,191 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-10-17 16:53:42,376 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 16:53:42,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 16:53:42,395 INFO L356 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2022-10-17 16:53:42,396 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 51 treesize of output 44 [2022-10-17 16:53:42,941 INFO L356 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-10-17 16:53:42,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 37 [2022-10-17 16:53:42,946 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:53:47,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:53:47,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 41 states and 82 transitions. [2022-10-17 16:53:47,677 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 82 transitions. [2022-10-17 16:53:47,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:53:47,678 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:53:47,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:53:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:53:47,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 41 conjunts are in the unsatisfiable core [2022-10-17 16:53:47,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:53:47,849 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 16:53:47,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 16:53:47,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 16:53:47,892 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2022-10-17 16:53:47,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 16:53:47,936 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-10-17 16:53:48,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 16:53:48,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 16:53:48,094 INFO L356 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2022-10-17 16:53:48,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 51 treesize of output 44 [2022-10-17 16:53:50,136 INFO L356 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-10-17 16:53:50,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 37 [2022-10-17 16:53:50,141 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:53:58,903 WARN L233 SmtUtils]: Spent 8.59s on a formula simplification. DAG size of input: 40 DAG size of output: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)