./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI --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 a4e999359b895f3090fa3a0a394d4e8b87ebbe801b1ab5ed9c028edec94c7c83 ........................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:01:42,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:01:42,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:01:42,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:01:42,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:01:42,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:01:42,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:01:42,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:01:42,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:01:42,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:01:42,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:01:42,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:01:42,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:01:42,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:01:42,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:01:42,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:01:42,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:01:42,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:01:42,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:01:42,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:01:42,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:01:42,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:01:42,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:01:42,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:01:42,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:01:42,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:01:42,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:01:42,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:01:42,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:01:42,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:01:42,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:01:42,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:01:42,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:01:42,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:01:42,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:01:42,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:01:42,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:01:42,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:01:42,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:01:42,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:01:42,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:01:42,361 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 04:01:42,392 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:01:42,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:01:42,393 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:01:42,393 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 04:01:42,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:01:42,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:01:42,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:01:42,395 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:01:42,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:01:42,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:01:42,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:01:42,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:01:42,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:01:42,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:01:42,396 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:01:42,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:01:42,397 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:01:42,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:01:42,405 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:01:42,405 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:01:42,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:01:42,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:01:42,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:01:42,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:01:42,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:01:42,407 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:01:42,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:01:42,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:01:42,407 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_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4e999359b895f3090fa3a0a394d4e8b87ebbe801b1ab5ed9c028edec94c7c83 [2021-10-29 04:01:42,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:01:42,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:01:42,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:01:42,825 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:01:42,826 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:01:42,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c [2021-10-29 04:01:42,907 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI/data/d1761c14e/e28a618da1e74241b3188bd02ff579c2/FLAG7483266ea [2021-10-29 04:01:43,475 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:01:43,481 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c [2021-10-29 04:01:43,492 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI/data/d1761c14e/e28a618da1e74241b3188bd02ff579c2/FLAG7483266ea [2021-10-29 04:01:43,830 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI/data/d1761c14e/e28a618da1e74241b3188bd02ff579c2 [2021-10-29 04:01:43,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:01:43,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:01:43,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:01:43,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:01:43,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:01:43,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:01:43" (1/1) ... [2021-10-29 04:01:43,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb3965d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:43, skipping insertion in model container [2021-10-29 04:01:43,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:01:43" (1/1) ... [2021-10-29 04:01:43,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:01:43,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:01:44,052 WARN L228 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_9d7bf692-792a-47c0-aad9-c65f7ef19a36/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c[535,548] [2021-10-29 04:01:44,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:01:44,091 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:01:44,105 WARN L228 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_9d7bf692-792a-47c0-aad9-c65f7ef19a36/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_unwindbound1.c[535,548] [2021-10-29 04:01:44,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:01:44,131 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:01:44,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:44 WrapperNode [2021-10-29 04:01:44,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:01:44,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:01:44,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:01:44,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:01:44,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:44" (1/1) ... [2021-10-29 04:01:44,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:44" (1/1) ... [2021-10-29 04:01:44,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:01:44,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:01:44,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:01:44,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:01:44,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:44" (1/1) ... [2021-10-29 04:01:44,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:44" (1/1) ... [2021-10-29 04:01:44,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:44" (1/1) ... [2021-10-29 04:01:44,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:44" (1/1) ... [2021-10-29 04:01:44,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:44" (1/1) ... [2021-10-29 04:01:44,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:44" (1/1) ... [2021-10-29 04:01:44,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:44" (1/1) ... [2021-10-29 04:01:44,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:01:44,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:01:44,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:01:44,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:01:44,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:44" (1/1) ... [2021-10-29 04:01:44,248 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:01:44,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:01:44,274 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:01:44,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:01:44,315 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-10-29 04:01:44,315 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-10-29 04:01:44,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:01:44,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:01:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:01:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:01:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 04:01:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 04:01:44,622 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:01:44,622 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 04:01:44,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:01:44 BoogieIcfgContainer [2021-10-29 04:01:44,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:01:44,626 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:01:44,626 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:01:44,643 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:01:44,643 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:01:44" (1/1) ... [2021-10-29 04:01:44,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:01:44,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:01:44,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2021-10-29 04:01:44,715 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2021-10-29 04:01:44,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 04:01:44,729 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:01:44,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:01:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:01:44,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 04:01:44,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:01:45,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 04:01:45,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:01:45,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2021-10-29 04:01:45,106 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2021-10-29 04:01:45,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 04:01:45,107 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:01:45,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:01:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:01:45,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 04:01:45,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:01:45,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 04:01:45,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:01:45,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 29 states and 40 transitions. [2021-10-29 04:01:45,422 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2021-10-29 04:01:45,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 04:01:45,424 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:01:45,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:01:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:01:45,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 04:01:45,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:01:45,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 04:01:47,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:01:47,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 34 states and 52 transitions. [2021-10-29 04:01:47,051 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2021-10-29 04:01:47,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 04:01:47,053 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:01:47,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:01:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:01:47,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 04:01:47,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:01:48,463 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 04:01:51,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:01:51,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 38 states and 61 transitions. [2021-10-29 04:01:51,562 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2021-10-29 04:01:51,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 04:01:51,564 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:01:51,564 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:01:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:01:51,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:01:51,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:01:51,771 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 04:02:01,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:02:01,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 48 states and 83 transitions. [2021-10-29 04:02:01,962 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2021-10-29 04:02:01,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 04:02:01,964 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:02:01,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:02:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:02:01,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 04:02:01,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:02:02,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 04:02:02,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:02:02,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 50 states and 90 transitions. [2021-10-29 04:02:02,559 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 90 transitions. [2021-10-29 04:02:02,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 04:02:02,560 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:02:02,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:02:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:02:02,608 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:02:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:02:02,649 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2021-10-29 04:02:02,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:02:02 ImpRootNode [2021-10-29 04:02:02,685 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:02:02,686 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:02:02,686 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:02:02,686 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:02:02,687 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:01:44" (3/4) ... [2021-10-29 04:02:02,688 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:02:02,793 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:02:02,794 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:02:02,796 INFO L168 Benchmark]: Toolchain (without parser) took 18960.00 ms. Allocated memory was 86.0 MB in the beginning and 127.9 MB in the end (delta: 41.9 MB). Free memory was 50.8 MB in the beginning and 95.7 MB in the end (delta: -44.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:02:02,797 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 86.0 MB. Free memory was 66.9 MB in the beginning and 66.8 MB in the end (delta: 52.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:02:02,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.57 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.6 MB in the beginning and 81.1 MB in the end (delta: -30.5 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:02:02,799 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.50 ms. Allocated memory is still 104.9 MB. Free memory was 81.1 MB in the beginning and 79.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:02:02,800 INFO L168 Benchmark]: Boogie Preprocessor took 38.85 ms. Allocated memory is still 104.9 MB. Free memory was 79.5 MB in the beginning and 78.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:02:02,801 INFO L168 Benchmark]: RCFGBuilder took 394.74 ms. Allocated memory is still 104.9 MB. Free memory was 78.2 MB in the beginning and 66.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:02:02,802 INFO L168 Benchmark]: CodeCheck took 18058.98 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 65.8 MB in the beginning and 98.8 MB in the end (delta: -33.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:02:02,803 INFO L168 Benchmark]: Witness Printer took 108.26 ms. Allocated memory is still 127.9 MB. Free memory was 97.8 MB in the beginning and 95.7 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:02:02,809 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.9s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1200 SDtfs, 456 SDslu, 424 SDs, 0 SdLazy, 1562 SolverSat, 646 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 943 GetRequests, 868 SyntacticMatches, 3 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1628 ImplicationChecksByTransitivity, 13.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 301 SizeOfPredicates, 6 NumberOfNonLiveVariables, 480 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 17/18 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 14]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int counter = 0; [L21] int A, R; [L22] long long u, v, r; [L23] A = __VERIFIER_nondet_int() [L24] R = __VERIFIER_nondet_int() [L25] CALL assume_abort_if_not((((long long) R - 1) * ((long long) R - 1)) < A) VAL [\old(cond)=1, counter=0] [L9] COND FALSE !(!cond) [L25] RET assume_abort_if_not((((long long) R - 1) * ((long long) R - 1)) < A) VAL [counter=0] [L27] CALL assume_abort_if_not(A % 2 == 1) VAL [\old(cond)=1, counter=0] [L9] COND FALSE !(!cond) [L27] RET assume_abort_if_not(A % 2 == 1) VAL [counter=0] [L29] u = ((long long) 2 * R) + 1 [L30] v = 1 [L31] r = ((long long) R * R) - A VAL [counter=0] [L34] EXPR counter++ VAL [counter=1] [L34] COND TRUE counter++<1 [L35] CALL __VERIFIER_assert(4*(A+r) == u*u - v*v - 2*u + 2*v) VAL [\old(cond)=1, counter=1] [L12] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L35] RET __VERIFIER_assert(4*(A+r) == u*u - v*v - 2*u + 2*v) VAL [counter=1] [L36] COND FALSE !(!(r != 0)) VAL [counter=1] [L39] EXPR counter++ VAL [counter=2] [L39] COND FALSE !(counter++<1) [L47] EXPR counter++ VAL [counter=3] [L47] COND FALSE !(counter++<1) [L34] EXPR counter++ VAL [counter=4] [L34] COND FALSE !(counter++<1) [L56] CALL __VERIFIER_assert(((long long) 4*A) == u*u - v*v - 2*u + 2*v) VAL [\old(cond)=0, counter=4] [L12] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=4] [L14] reach_error() VAL [\old(cond)=0, cond=0, counter=4] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 86.0 MB. Free memory was 66.9 MB in the beginning and 66.8 MB in the end (delta: 52.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 295.57 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.6 MB in the beginning and 81.1 MB in the end (delta: -30.5 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.50 ms. Allocated memory is still 104.9 MB. Free memory was 81.1 MB in the beginning and 79.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.85 ms. Allocated memory is still 104.9 MB. Free memory was 79.5 MB in the beginning and 78.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 394.74 ms. Allocated memory is still 104.9 MB. Free memory was 78.2 MB in the beginning and 66.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 18058.98 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 65.8 MB in the beginning and 98.8 MB in the end (delta: -33.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 108.26 ms. Allocated memory is still 127.9 MB. Free memory was 97.8 MB in the beginning and 95.7 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:02:02,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7bf692-792a-47c0-aad9-c65f7ef19a36/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...