./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.3.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --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 64bit --witnessprinter.graph.data.programhash 41dd36cd5dd5c38b01ed71dddf9118351e2ce12472542f9c62d762166f3bbfd4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:53:16,248 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:53:16,310 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-02 23:53:16,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:53:16,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:53:16,336 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:53:16,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:53:16,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:53:16,338 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:53:16,338 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:53:16,339 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:53:16,339 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:53:16,340 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:53:16,340 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:53:16,341 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:53:16,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:53:16,342 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:53:16,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:53:16,343 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:53:16,343 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:53:16,344 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:53:16,345 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:53:16,345 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:53:16,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:53:16,346 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:53:16,347 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:53:16,347 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:53:16,348 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:53:16,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:53:16,349 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:53:16,349 INFO L153 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_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41dd36cd5dd5c38b01ed71dddf9118351e2ce12472542f9c62d762166f3bbfd4 [2023-12-02 23:53:16,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:53:16,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:53:16,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:53:16,568 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:53:16,568 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:53:16,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.3.prop1-back-serstep.c [2023-12-02 23:53:19,346 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:53:19,641 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:53:19,641 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.3.prop1-back-serstep.c [2023-12-02 23:53:19,662 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/data/c68fcfbaf/7b98743eb8e64b47869dae1774a38496/FLAGc220011a3 [2023-12-02 23:53:19,677 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/data/c68fcfbaf/7b98743eb8e64b47869dae1774a38496 [2023-12-02 23:53:19,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:53:19,681 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:53:19,683 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:53:19,683 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:53:19,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:53:19,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:53:19" (1/1) ... [2023-12-02 23:53:19,690 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@185ca270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:19, skipping insertion in model container [2023-12-02 23:53:19,690 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:53:19" (1/1) ... [2023-12-02 23:53:19,779 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:53:19,947 WARN L240 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_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.3.prop1-back-serstep.c[1175,1188] [2023-12-02 23:53:20,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:53:20,329 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:53:20,338 WARN L240 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_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.3.prop1-back-serstep.c[1175,1188] [2023-12-02 23:53:20,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:53:20,462 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:53:20,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:20 WrapperNode [2023-12-02 23:53:20,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:53:20,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:53:20,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:53:20,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:53:20,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:20" (1/1) ... [2023-12-02 23:53:20,550 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:20" (1/1) ... [2023-12-02 23:53:21,364 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 9090 [2023-12-02 23:53:21,365 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:53:21,366 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:53:21,366 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:53:21,366 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:53:21,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:20" (1/1) ... [2023-12-02 23:53:21,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:20" (1/1) ... [2023-12-02 23:53:21,570 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:20" (1/1) ... [2023-12-02 23:53:21,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:20" (1/1) ... [2023-12-02 23:53:21,779 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:20" (1/1) ... [2023-12-02 23:53:21,822 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:20" (1/1) ... [2023-12-02 23:53:21,905 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:20" (1/1) ... [2023-12-02 23:53:22,006 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:20" (1/1) ... [2023-12-02 23:53:22,189 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:53:22,189 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:53:22,190 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:53:22,190 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:53:22,191 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:53:20" (1/1) ... [2023-12-02 23:53:22,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:53:22,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:53:22,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:53:22,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:53:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:53:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:53:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:53:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:53:22,715 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:53:22,718 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:53:28,244 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:53:39,228 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:53:39,228 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:53:39,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:53:39 BoogieIcfgContainer [2023-12-02 23:53:39,230 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:53:39,230 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:53:39,230 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:53:39,237 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:53:39,237 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:53:39" (1/1) ... [2023-12-02 23:53:39,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:53:39,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:53:39,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 23:53:39,291 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 23:53:39,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 23:53:39,293 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:53:39,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:53:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:53:47,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:53:58,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 23:54:08,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 23:54:10,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:54:20,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:54:24,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.80s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:54:34,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:54:34,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:54:34,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-02 23:54:34,909 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-02 23:54:34,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:54:34,909 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:54:34,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:54:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 23:54:46,288 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 23:54:46,292 INFO L158 Benchmark]: Toolchain (without parser) took 86610.13ms. Allocated memory was 153.1MB in the beginning and 5.0GB in the end (delta: 4.9GB). Free memory was 110.6MB in the beginning and 4.2GB in the end (delta: -4.0GB). Peak memory consumption was 849.8MB. Max. memory is 16.1GB. [2023-12-02 23:54:46,293 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 66.5MB in the beginning and 66.3MB in the end (delta: 209.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:54:46,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 780.37ms. Allocated memory is still 153.1MB. Free memory was 110.2MB in the beginning and 62.4MB in the end (delta: 47.8MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. [2023-12-02 23:54:46,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 901.23ms. Allocated memory was 153.1MB in the beginning and 419.4MB in the end (delta: 266.3MB). Free memory was 62.4MB in the beginning and 240.7MB in the end (delta: -178.3MB). Peak memory consumption was 149.2MB. Max. memory is 16.1GB. [2023-12-02 23:54:46,295 INFO L158 Benchmark]: Boogie Preprocessor took 823.29ms. Allocated memory is still 419.4MB. Free memory was 240.7MB in the beginning and 199.3MB in the end (delta: 41.4MB). Peak memory consumption was 86.5MB. Max. memory is 16.1GB. [2023-12-02 23:54:46,296 INFO L158 Benchmark]: RCFGBuilder took 17040.27ms. Allocated memory was 419.4MB in the beginning and 2.4GB in the end (delta: 2.0GB). Free memory was 199.3MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2023-12-02 23:54:46,297 INFO L158 Benchmark]: CodeCheck took 67060.40ms. Allocated memory was 2.4GB in the beginning and 5.0GB in the end (delta: 2.7GB). Free memory was 1.4GB in the beginning and 4.2GB in the end (delta: -2.8GB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:54:46,301 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 66.5MB in the beginning and 66.3MB in the end (delta: 209.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 780.37ms. Allocated memory is still 153.1MB. Free memory was 110.2MB in the beginning and 62.4MB in the end (delta: 47.8MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 901.23ms. Allocated memory was 153.1MB in the beginning and 419.4MB in the end (delta: 266.3MB). Free memory was 62.4MB in the beginning and 240.7MB in the end (delta: -178.3MB). Peak memory consumption was 149.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 823.29ms. Allocated memory is still 419.4MB. Free memory was 240.7MB in the beginning and 199.3MB in the end (delta: 41.4MB). Peak memory consumption was 86.5MB. Max. memory is 16.1GB. * RCFGBuilder took 17040.27ms. Allocated memory was 419.4MB in the beginning and 2.4GB in the end (delta: 2.0GB). Free memory was 199.3MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * CodeCheck took 67060.40ms. Allocated memory was 2.4GB in the beginning and 5.0GB in the end (delta: 2.7GB). Free memory was 1.4GB in the beginning and 4.2GB in the end (delta: -2.8GB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 23:54:46,513 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-02 23:54:46,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --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 64bit --witnessprinter.graph.data.programhash 41dd36cd5dd5c38b01ed71dddf9118351e2ce12472542f9c62d762166f3bbfd4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:54:48,407 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:54:48,483 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-02 23:54:48,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:54:48,516 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:54:48,517 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:54:48,518 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:54:48,518 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:54:48,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:54:48,519 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:54:48,520 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:54:48,520 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:54:48,521 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:54:48,521 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:54:48,522 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 23:54:48,522 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 23:54:48,523 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 23:54:48,524 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:54:48,524 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:54:48,525 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:54:48,525 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:54:48,526 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:54:48,526 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:54:48,527 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 23:54:48,527 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:54:48,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:54:48,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:54:48,529 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:54:48,529 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:54:48,530 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 23:54:48,530 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 23:54:48,530 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:54:48,531 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 23:54:48,531 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 23:54:48,531 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41dd36cd5dd5c38b01ed71dddf9118351e2ce12472542f9c62d762166f3bbfd4 [2023-12-02 23:54:48,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:54:48,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:54:48,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:54:48,831 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:54:48,831 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:54:48,833 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.3.prop1-back-serstep.c [2023-12-02 23:54:51,588 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:54:51,906 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:54:51,907 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.3.prop1-back-serstep.c [2023-12-02 23:54:51,928 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/data/69ceb09cf/03782ffa4c704d7eac7d21439bd5ccc8/FLAG8df06155d [2023-12-02 23:54:51,943 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/data/69ceb09cf/03782ffa4c704d7eac7d21439bd5ccc8 [2023-12-02 23:54:51,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:54:51,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:54:51,949 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:54:51,949 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:54:51,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:54:51,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:54:51" (1/1) ... [2023-12-02 23:54:51,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b51f740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:51, skipping insertion in model container [2023-12-02 23:54:51,956 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:54:51" (1/1) ... [2023-12-02 23:54:52,027 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:54:52,224 WARN L240 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_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.3.prop1-back-serstep.c[1175,1188] [2023-12-02 23:54:52,537 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:54:52,550 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:54:52,562 WARN L240 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_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.3.prop1-back-serstep.c[1175,1188] [2023-12-02 23:54:52,725 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:54:52,740 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:54:52,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:52 WrapperNode [2023-12-02 23:54:52,740 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:54:52,741 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:54:52,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:54:52,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:54:52,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:52" (1/1) ... [2023-12-02 23:54:52,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:52" (1/1) ... [2023-12-02 23:54:52,877 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2497 [2023-12-02 23:54:52,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:54:52,897 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:54:52,897 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:54:52,897 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:54:52,906 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:52" (1/1) ... [2023-12-02 23:54:52,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:52" (1/1) ... [2023-12-02 23:54:52,921 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:52" (1/1) ... [2023-12-02 23:54:52,922 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:52" (1/1) ... [2023-12-02 23:54:52,996 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:52" (1/1) ... [2023-12-02 23:54:53,006 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:52" (1/1) ... [2023-12-02 23:54:53,019 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:52" (1/1) ... [2023-12-02 23:54:53,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:52" (1/1) ... [2023-12-02 23:54:53,059 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:54:53,060 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:54:53,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:54:53,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:54:53,061 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:54:52" (1/1) ... [2023-12-02 23:54:53,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:54:53,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:54:53,091 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:54:53,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:54:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:54:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 23:54:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:54:53,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:54:53,540 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:54:53,543 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:54:56,937 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:54:57,077 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:54:57,077 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 23:54:57,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:54:57 BoogieIcfgContainer [2023-12-02 23:54:57,079 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:54:57,080 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:54:57,080 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:54:57,089 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:54:57,090 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:54:57" (1/1) ... [2023-12-02 23:54:57,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:54:57,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:54:57,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 23:54:57,151 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 23:54:57,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 23:54:57,154 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:54:57,154 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:54:57,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:54:57,156 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:54:57,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 23:54:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:57,935 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:54:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:54:58,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 23:54:58,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:54:58,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:54:58,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 23:54:59,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 23:54:59,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:54:59,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-02 23:54:59,604 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-02 23:54:59,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:54:59,605 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:54:59,605 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:54:59,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:54:59,606 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:54:59,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 23:55:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:55:01,200 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:55:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:55:01,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 2131 conjuncts, 136 conjunts are in the unsatisfiable core [2023-12-02 23:55:01,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:55:11,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:55:11,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 23:55:20,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:55:20,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-02 23:55:20,634 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-02 23:55:20,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:55:20,636 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:55:20,636 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:55:20,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:55:20,637 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:55:20,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f2ffa64-8e9a-48f7-93ad-6d63af2fbe31/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 23:55:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:55:23,066 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:55:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:55:25,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 3980 conjuncts, 678 conjunts are in the unsatisfiable core [2023-12-02 23:55:25,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:01:16,132 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification. DAG size of input: 10058 DAG size of output: 19356 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-03 00:06:27,090 WARN L293 SmtUtils]: Spent 10.63s on a formula simplification. DAG size of input: 19369 DAG size of output: 37876 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-03 00:06:38,075 WARN L293 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 19330 DAG size of output: 28633 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)