./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/fermat2-ll.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_6fe01500-52d9-46d3-a31b-add582a4471a/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe01500-52d9-46d3-a31b-add582a4471a/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_6fe01500-52d9-46d3-a31b-add582a4471a/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe01500-52d9-46d3-a31b-add582a4471a/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/fermat2-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe01500-52d9-46d3-a31b-add582a4471a/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_6fe01500-52d9-46d3-a31b-add582a4471a/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 43c7c57321afe9055366ca260a89f0e4de96718cc528ce2ea2543b13c4af6ed7 --- 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 16:40:03,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:40:03,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:40:03,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:40:03,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:40:03,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:40:03,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:40:03,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:40:03,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:40:03,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:40:03,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:40:03,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:40:03,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:40:03,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:40:03,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:40:03,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:40:03,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:40:03,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:40:03,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:40:03,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:40:03,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:40:03,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:40:03,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:40:03,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:40:03,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:40:03,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:40:03,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:40:03,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:40:03,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:40:03,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:40:03,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:40:03,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:40:03,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:40:03,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:40:03,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:40:03,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:40:03,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:40:03,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:40:03,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:40:03,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:40:03,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:40:03,192 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe01500-52d9-46d3-a31b-add582a4471a/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:40:03,252 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:40:03,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:40:03,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:40:03,258 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:40:03,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:40:03,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:40:03,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:40:03,260 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:40:03,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:40:03,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:40:03,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:40:03,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:40:03,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:40:03,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:40:03,263 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:40:03,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:40:03,263 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:40:03,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:40:03,264 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:40:03,264 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:40:03,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:40:03,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:40:03,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:40:03,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:40:03,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:40:03,273 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:40:03,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:40:03,274 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:40:03,274 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_6fe01500-52d9-46d3-a31b-add582a4471a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe01500-52d9-46d3-a31b-add582a4471a/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c7c57321afe9055366ca260a89f0e4de96718cc528ce2ea2543b13c4af6ed7 [2022-10-17 16:40:03,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:40:03,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:40:03,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:40:03,661 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:40:03,662 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:40:03,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe01500-52d9-46d3-a31b-add582a4471a/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench/fermat2-ll.c [2022-10-17 16:40:03,749 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe01500-52d9-46d3-a31b-add582a4471a/bin/ukojak-92XMlrwhuB/data/197c557c7/6f831c7994124df69c57ceabd0f902a0/FLAG30d3fcafc [2022-10-17 16:40:04,349 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:40:04,351 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe01500-52d9-46d3-a31b-add582a4471a/sv-benchmarks/c/nla-digbench/fermat2-ll.c [2022-10-17 16:40:04,358 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe01500-52d9-46d3-a31b-add582a4471a/bin/ukojak-92XMlrwhuB/data/197c557c7/6f831c7994124df69c57ceabd0f902a0/FLAG30d3fcafc [2022-10-17 16:40:04,689 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe01500-52d9-46d3-a31b-add582a4471a/bin/ukojak-92XMlrwhuB/data/197c557c7/6f831c7994124df69c57ceabd0f902a0 [2022-10-17 16:40:04,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:40:04,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:40:04,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:40:04,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:40:04,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:40:04,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:40:04" (1/1) ... [2022-10-17 16:40:04,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d262039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:40:04, skipping insertion in model container [2022-10-17 16:40:04,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:40:04" (1/1) ... [2022-10-17 16:40:04,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:40:04,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:40:04,933 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_6fe01500-52d9-46d3-a31b-add582a4471a/sv-benchmarks/c/nla-digbench/fermat2-ll.c[524,537] [2022-10-17 16:40:04,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:40:04,971 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:40:04,989 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_6fe01500-52d9-46d3-a31b-add582a4471a/sv-benchmarks/c/nla-digbench/fermat2-ll.c[524,537] [2022-10-17 16:40:04,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:40:05,009 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:40:05,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:40:05 WrapperNode [2022-10-17 16:40:05,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:40:05,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:40:05,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:40:05,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:40:05,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:40:05" (1/1) ... [2022-10-17 16:40:05,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:40:05" (1/1) ... [2022-10-17 16:40:05,047 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2022-10-17 16:40:05,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:40:05,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:40:05,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:40:05,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:40:05,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:40:05" (1/1) ... [2022-10-17 16:40:05,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:40:05" (1/1) ... [2022-10-17 16:40:05,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:40:05" (1/1) ... [2022-10-17 16:40:05,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:40:05" (1/1) ... [2022-10-17 16:40:05,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:40:05" (1/1) ... [2022-10-17 16:40:05,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:40:05" (1/1) ... [2022-10-17 16:40:05,089 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:40:05" (1/1) ... [2022-10-17 16:40:05,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:40:05" (1/1) ... [2022-10-17 16:40:05,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:40:05,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:40:05,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:40:05,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:40:05,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:40:05" (1/1) ... [2022-10-17 16:40:05,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:40:05,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe01500-52d9-46d3-a31b-add582a4471a/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:40:05,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe01500-52d9-46d3-a31b-add582a4471a/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:40:05,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe01500-52d9-46d3-a31b-add582a4471a/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:40:05,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:40:05,192 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 16:40:05,195 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 16:40:05,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:40:05,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:40:05,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:40:05,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:40:05,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:40:05,258 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:40:05,260 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:40:05,449 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:40:05,533 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:40:05,534 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:40:05,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:40:05 BoogieIcfgContainer [2022-10-17 16:40:05,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:40:05,538 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:40:05,538 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:40:05,566 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:40:05,566 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:40:05" (1/1) ... [2022-10-17 16:40:05,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:40:05,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:40:05,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2022-10-17 16:40:05,711 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-10-17 16:40:05,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:40:05,717 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:40:05,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:40:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:40:05,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 16:40:05,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:40:05,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:40:06,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:40:06,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2022-10-17 16:40:06,016 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-10-17 16:40:06,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:40:06,017 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:40:06,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:40:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:40:06,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-17 16:40:06,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:40:06,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:40:07,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-10-17 16:40:08,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:40:08,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2022-10-17 16:40:08,729 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-10-17 16:40:08,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:40:08,731 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:40:08,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:40:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:40:08,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 16:40:08,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:40:08,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:40:10,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-10-17 16:40:11,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:40:11,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 25 states and 34 transitions. [2022-10-17 16:40:11,442 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2022-10-17 16:40:11,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 16:40:11,444 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:40:11,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:40:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:40:11,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 16:40:11,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:40:13,502 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:40:15,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-10-17 16:40:19,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-10-17 16:40:20,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-10-17 16:40:20,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:40:20,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 29 states and 40 transitions. [2022-10-17 16:40:20,849 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2022-10-17 16:40:20,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 16:40:20,850 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:40:20,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:40:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:40:20,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 16:40:20,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 16:40:24,158 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:40:46,899 WARN L233 SmtUtils]: Spent 20.26s on a formula simplification. DAG size of input: 34 DAG size of output: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)