/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 11:20:15,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 11:20:15,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 11:20:15,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 11:20:15,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 11:20:15,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 11:20:15,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 11:20:15,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 11:20:15,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 11:20:15,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 11:20:15,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 11:20:15,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 11:20:15,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 11:20:15,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 11:20:15,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 11:20:15,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 11:20:15,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 11:20:15,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 11:20:15,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 11:20:15,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 11:20:15,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 11:20:15,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 11:20:15,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 11:20:15,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 11:20:15,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 11:20:15,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 11:20:15,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 11:20:15,086 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 11:20:15,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 11:20:15,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 11:20:15,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 11:20:15,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 11:20:15,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 11:20:15,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 11:20:15,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 11:20:15,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 11:20:15,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 11:20:15,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 11:20:15,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 11:20:15,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 11:20:15,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 11:20:15,093 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 11:20:15,129 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 11:20:15,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 11:20:15,129 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 11:20:15,129 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 11:20:15,130 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 11:20:15,130 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 11:20:15,130 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 11:20:15,130 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 11:20:15,131 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 11:20:15,131 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 11:20:15,131 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 11:20:15,132 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 11:20:15,132 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 11:20:15,132 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 11:20:15,132 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 11:20:15,132 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 11:20:15,132 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 11:20:15,132 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 11:20:15,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 11:20:15,133 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 11:20:15,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 11:20:15,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 11:20:15,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 11:20:15,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 11:20:15,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 11:20:15,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 11:20:15,134 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 11:20:15,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 11:20:15,134 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 11:20:15,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 11:20:15,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 11:20:15,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 11:20:15,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:20:15,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 11:20:15,135 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 11:20:15,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 11:20:15,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 11:20:15,136 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 11:20:15,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 11:20:15,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 11:20:15,136 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 11:20:15,136 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 11:20:15,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 11:20:15,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 11:20:15,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 11:20:15,368 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 11:20:15,368 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 11:20:15,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound1.c [2023-04-01 11:20:16,449 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 11:20:16,651 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 11:20:16,651 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound1.c [2023-04-01 11:20:16,656 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/994c7b6b3/9b725e9a1c474ff5bb18385e3b987c12/FLAG58ac18d5d [2023-04-01 11:20:16,665 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/994c7b6b3/9b725e9a1c474ff5bb18385e3b987c12 [2023-04-01 11:20:16,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 11:20:16,668 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 11:20:16,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 11:20:16,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 11:20:16,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 11:20:16,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:20:16" (1/1) ... [2023-04-01 11:20:16,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ad9fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:20:16, skipping insertion in model container [2023-04-01 11:20:16,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:20:16" (1/1) ... [2023-04-01 11:20:16,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 11:20:16,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 11:20:16,799 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound1.c[489,502] [2023-04-01 11:20:16,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:20:16,820 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 11:20:16,829 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound1.c[489,502] [2023-04-01 11:20:16,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:20:16,853 INFO L208 MainTranslator]: Completed translation [2023-04-01 11:20:16,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:20:16 WrapperNode [2023-04-01 11:20:16,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 11:20:16,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 11:20:16,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 11:20:16,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 11:20:16,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:20:16" (1/1) ... [2023-04-01 11:20:16,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:20:16" (1/1) ... [2023-04-01 11:20:16,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:20:16" (1/1) ... [2023-04-01 11:20:16,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:20:16" (1/1) ... [2023-04-01 11:20:16,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:20:16" (1/1) ... [2023-04-01 11:20:16,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:20:16" (1/1) ... [2023-04-01 11:20:16,896 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:20:16" (1/1) ... [2023-04-01 11:20:16,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:20:16" (1/1) ... [2023-04-01 11:20:16,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 11:20:16,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 11:20:16,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 11:20:16,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 11:20:16,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:20:16" (1/1) ... [2023-04-01 11:20:16,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:20:16,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:20:16,934 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 11:20:16,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 11:20:16,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 11:20:16,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 11:20:16,972 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 11:20:16,972 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 11:20:16,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-04-01 11:20:16,972 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 11:20:16,972 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 11:20:16,972 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 11:20:16,972 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 11:20:16,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 11:20:16,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 11:20:16,973 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 11:20:16,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-04-01 11:20:16,973 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 11:20:16,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 11:20:16,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 11:20:16,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 11:20:16,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 11:20:16,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 11:20:16,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 11:20:17,037 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 11:20:17,039 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 11:20:17,171 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 11:20:17,233 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 11:20:17,233 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 11:20:17,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:20:17 BoogieIcfgContainer [2023-04-01 11:20:17,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 11:20:17,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 11:20:17,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 11:20:17,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 11:20:17,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 11:20:16" (1/3) ... [2023-04-01 11:20:17,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3602f22c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:20:17, skipping insertion in model container [2023-04-01 11:20:17,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:20:16" (2/3) ... [2023-04-01 11:20:17,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3602f22c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:20:17, skipping insertion in model container [2023-04-01 11:20:17,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:20:17" (3/3) ... [2023-04-01 11:20:17,242 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound1.c [2023-04-01 11:20:17,258 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 11:20:17,258 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 11:20:17,309 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 11:20:17,314 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@75ffda11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 11:20:17,315 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 11:20:17,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-04-01 11:20:17,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-04-01 11:20:17,324 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:20:17,325 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:20:17,325 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:20:17,329 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:20:17,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1201008584, now seen corresponding path program 1 times [2023-04-01 11:20:17,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:20:17,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094907772] [2023-04-01 11:20:17,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:20:17,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:20:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:20:17,480 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-01 11:20:17,480 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:20:17,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094907772] [2023-04-01 11:20:17,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094907772] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:20:17,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:20:17,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 11:20:17,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728912319] [2023-04-01 11:20:17,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:20:17,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 11:20:17,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:20:17,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 11:20:17,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 11:20:17,512 INFO L87 Difference]: Start difference. First operand has 32 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-01 11:20:17,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:20:17,539 INFO L93 Difference]: Finished difference Result 51 states and 77 transitions. [2023-04-01 11:20:17,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 11:20:17,542 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 24 [2023-04-01 11:20:17,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:20:17,548 INFO L225 Difference]: With dead ends: 51 [2023-04-01 11:20:17,549 INFO L226 Difference]: Without dead ends: 28 [2023-04-01 11:20:17,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 11:20:17,568 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 11:20:17,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 11:20:17,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-04-01 11:20:17,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-04-01 11:20:17,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-04-01 11:20:17,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2023-04-01 11:20:17,611 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 37 transitions. Word has length 24 [2023-04-01 11:20:17,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:20:17,613 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 37 transitions. [2023-04-01 11:20:17,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-01 11:20:17,614 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2023-04-01 11:20:17,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-04-01 11:20:17,616 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:20:17,616 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:20:17,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 11:20:17,617 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:20:17,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:20:17,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1269527884, now seen corresponding path program 1 times [2023-04-01 11:20:17,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:20:17,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945089101] [2023-04-01 11:20:17,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:20:17,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:20:17,670 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-01 11:20:17,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1935713269] [2023-04-01 11:20:17,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:20:17,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:20:17,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:20:17,673 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 11:20:17,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 11:20:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:20:17,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 17 conjunts are in the unsatisfiable core [2023-04-01 11:20:17,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 11:20:17,886 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-01 11:20:17,886 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 11:20:17,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:20:17,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945089101] [2023-04-01 11:20:17,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-01 11:20:17,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935713269] [2023-04-01 11:20:17,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935713269] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:20:17,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:20:17,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 11:20:17,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706974727] [2023-04-01 11:20:17,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:20:17,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 11:20:17,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:20:17,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 11:20:17,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 11:20:17,891 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-01 11:20:17,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:20:17,988 INFO L93 Difference]: Finished difference Result 43 states and 58 transitions. [2023-04-01 11:20:17,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 11:20:17,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 24 [2023-04-01 11:20:17,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:20:17,991 INFO L225 Difference]: With dead ends: 43 [2023-04-01 11:20:17,992 INFO L226 Difference]: Without dead ends: 41 [2023-04-01 11:20:17,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-01 11:20:17,993 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 6 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:20:17,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 101 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:20:17,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-04-01 11:20:18,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2023-04-01 11:20:18,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2023-04-01 11:20:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 55 transitions. [2023-04-01 11:20:18,008 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 55 transitions. Word has length 24 [2023-04-01 11:20:18,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:20:18,009 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 55 transitions. [2023-04-01 11:20:18,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-01 11:20:18,009 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2023-04-01 11:20:18,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-04-01 11:20:18,010 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:20:18,010 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:20:18,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 11:20:18,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:20:18,216 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:20:18,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:20:18,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1521017309, now seen corresponding path program 1 times [2023-04-01 11:20:18,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:20:18,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471445544] [2023-04-01 11:20:18,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:20:18,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:20:18,233 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-01 11:20:18,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [453523083] [2023-04-01 11:20:18,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:20:18,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:20:18,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:20:18,236 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 11:20:18,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 11:20:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:20:18,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 27 conjunts are in the unsatisfiable core [2023-04-01 11:20:18,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 11:20:18,497 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-01 11:20:18,497 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 11:20:18,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:20:18,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471445544] [2023-04-01 11:20:18,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-01 11:20:18,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453523083] [2023-04-01 11:20:18,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453523083] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 11:20:18,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [749221536] [2023-04-01 11:20:18,664 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-04-01 11:20:18,664 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 11:20:18,670 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 11:20:18,685 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 11:20:18,685 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 11:20:18,805 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 43 for LOIs [2023-04-01 11:20:19,604 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2023-04-01 11:20:19,627 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 43 for LOIs [2023-04-01 11:20:19,633 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-01 11:20:19,640 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 11:20:20,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [749221536] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:20:20,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 11:20:20,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 19 [2023-04-01 11:20:20,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918344972] [2023-04-01 11:20:20,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:20:20,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-01 11:20:20,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:20:20,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-01 11:20:20,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2023-04-01 11:20:20,240 INFO L87 Difference]: Start difference. First operand 40 states and 55 transitions. Second operand has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 5 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2023-04-01 11:20:20,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:20:20,978 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2023-04-01 11:20:20,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-01 11:20:20,978 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 5 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) Word has length 29 [2023-04-01 11:20:20,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:20:20,979 INFO L225 Difference]: With dead ends: 47 [2023-04-01 11:20:20,980 INFO L226 Difference]: Without dead ends: 43 [2023-04-01 11:20:20,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=132, Invalid=680, Unknown=0, NotChecked=0, Total=812 [2023-04-01 11:20:20,981 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 64 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 11:20:20,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 5 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 11:20:20,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-04-01 11:20:21,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-04-01 11:20:21,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 21 states have internal predecessors, (22), 18 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-04-01 11:20:21,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2023-04-01 11:20:21,016 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 29 [2023-04-01 11:20:21,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:20:21,018 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2023-04-01 11:20:21,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 5 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2023-04-01 11:20:21,019 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2023-04-01 11:20:21,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-04-01 11:20:21,020 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:20:21,020 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:20:21,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 11:20:21,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-04-01 11:20:21,226 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:20:21,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:20:21,226 INFO L85 PathProgramCache]: Analyzing trace with hash -109978194, now seen corresponding path program 1 times [2023-04-01 11:20:21,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:20:21,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16242149] [2023-04-01 11:20:21,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:20:21,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:20:21,244 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-01 11:20:21,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1745209383] [2023-04-01 11:20:21,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:20:21,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:20:21,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:20:21,257 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 11:20:21,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 11:20:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:20:21,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2023-04-01 11:20:21,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 11:20:21,326 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-01 11:20:21,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 11:20:21,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:20:21,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16242149] [2023-04-01 11:20:21,329 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-01 11:20:21,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745209383] [2023-04-01 11:20:21,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745209383] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:20:21,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:20:21,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 11:20:21,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087785518] [2023-04-01 11:20:21,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:20:21,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 11:20:21,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:20:21,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 11:20:21,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 11:20:21,331 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-04-01 11:20:21,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:20:21,376 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2023-04-01 11:20:21,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 11:20:21,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 40 [2023-04-01 11:20:21,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:20:21,386 INFO L225 Difference]: With dead ends: 49 [2023-04-01 11:20:21,386 INFO L226 Difference]: Without dead ends: 47 [2023-04-01 11:20:21,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-01 11:20:21,390 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 5 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 11:20:21,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 110 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 11:20:21,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-04-01 11:20:21,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-04-01 11:20:21,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 24 states have internal predecessors, (25), 18 states have call successors, (18), 7 states have call predecessors, (18), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-04-01 11:20:21,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 58 transitions. [2023-04-01 11:20:21,411 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 58 transitions. Word has length 40 [2023-04-01 11:20:21,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:20:21,411 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 58 transitions. [2023-04-01 11:20:21,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-04-01 11:20:21,411 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 58 transitions. [2023-04-01 11:20:21,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-04-01 11:20:21,413 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:20:21,413 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:20:21,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-01 11:20:21,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:20:21,622 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:20:21,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:20:21,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1626365341, now seen corresponding path program 1 times [2023-04-01 11:20:21,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:20:21,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160912701] [2023-04-01 11:20:21,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:20:21,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:20:21,636 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-01 11:20:21,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1596485554] [2023-04-01 11:20:21,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:20:21,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:20:21,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:20:21,638 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 11:20:21,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-01 11:20:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:20:21,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 25 conjunts are in the unsatisfiable core [2023-04-01 11:20:21,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 11:20:21,824 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-01 11:20:21,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 11:20:21,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:20:21,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160912701] [2023-04-01 11:20:21,825 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-01 11:20:21,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596485554] [2023-04-01 11:20:21,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596485554] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:20:21,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:20:21,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-01 11:20:21,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128945923] [2023-04-01 11:20:21,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:20:21,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-01 11:20:21,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:20:21,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-01 11:20:21,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-04-01 11:20:21,827 INFO L87 Difference]: Start difference. First operand 47 states and 58 transitions. Second operand has 8 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-01 11:20:21,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:20:21,898 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2023-04-01 11:20:21,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 11:20:21,898 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 41 [2023-04-01 11:20:21,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:20:21,902 INFO L225 Difference]: With dead ends: 57 [2023-04-01 11:20:21,902 INFO L226 Difference]: Without dead ends: 36 [2023-04-01 11:20:21,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-04-01 11:20:21,904 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 10 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 11:20:21,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 62 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 11:20:21,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-04-01 11:20:21,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-04-01 11:20:21,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 11 states have call successors, (11), 7 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-04-01 11:20:21,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2023-04-01 11:20:21,922 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 41 [2023-04-01 11:20:21,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:20:21,922 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2023-04-01 11:20:21,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-01 11:20:21,923 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2023-04-01 11:20:21,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-04-01 11:20:21,924 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:20:21,924 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:20:21,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-01 11:20:22,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:20:22,136 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:20:22,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:20:22,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1565532503, now seen corresponding path program 1 times [2023-04-01 11:20:22,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:20:22,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770172615] [2023-04-01 11:20:22,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:20:22,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:20:22,179 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-01 11:20:22,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2073032873] [2023-04-01 11:20:22,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:20:22,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:20:22,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:20:22,205 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 11:20:22,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-01 11:20:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:20:22,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 18 conjunts are in the unsatisfiable core [2023-04-01 11:20:22,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 11:20:22,373 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-01 11:20:22,373 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 11:20:22,469 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-01 11:20:22,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:20:22,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770172615] [2023-04-01 11:20:22,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-01 11:20:22,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073032873] [2023-04-01 11:20:22,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073032873] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 11:20:22,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1318112530] [2023-04-01 11:20:22,471 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2023-04-01 11:20:22,471 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 11:20:22,472 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 11:20:22,472 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 11:20:22,472 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 11:20:22,498 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 43 for LOIs [2023-04-01 11:20:23,083 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2023-04-01 11:20:23,094 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 43 for LOIs [2023-04-01 11:20:23,097 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-01 11:20:23,100 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 11:20:23,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1318112530] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:20:23,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-04-01 11:20:23,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9, 8] total 22 [2023-04-01 11:20:23,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167692356] [2023-04-01 11:20:23,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:20:23,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-01 11:20:23,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:20:23,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-01 11:20:23,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2023-04-01 11:20:23,745 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 12 states, 6 states have (on average 2.0) internal successors, (12), 8 states have internal predecessors, (12), 6 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 6 states have call successors, (9) [2023-04-01 11:20:24,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:20:24,399 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2023-04-01 11:20:24,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-01 11:20:24,403 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 6 states have (on average 2.0) internal successors, (12), 8 states have internal predecessors, (12), 6 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 6 states have call successors, (9) Word has length 45 [2023-04-01 11:20:24,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:20:24,405 INFO L225 Difference]: With dead ends: 36 [2023-04-01 11:20:24,405 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 11:20:24,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 113 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=159, Invalid=711, Unknown=0, NotChecked=0, Total=870 [2023-04-01 11:20:24,406 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 27 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:20:24,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 8 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:20:24,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 11:20:24,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 11:20:24,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-01 11:20:24,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 11:20:24,407 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2023-04-01 11:20:24,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:20:24,408 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 11:20:24,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 6 states have (on average 2.0) internal successors, (12), 8 states have internal predecessors, (12), 6 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 6 states have call successors, (9) [2023-04-01 11:20:24,408 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 11:20:24,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 11:20:24,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 11:20:24,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-04-01 11:20:24,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:20:24,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-01 11:20:25,806 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2023-04-01 11:20:25,806 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 4) no Hoare annotation was computed. [2023-04-01 11:20:25,806 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2023-04-01 11:20:25,807 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2023-04-01 11:20:25,807 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 35 52) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (or (not (= (select .cse0 0) 48)) (not (= |#NULL.offset| 0)) (not (= 2 (select |#length| 1))) (not (= (select |#valid| 3) 1)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) (not (= (select .cse0 1) 0)) (not (= (select |#valid| 1) 1)) (not (= |#NULL.base| 0)) (not (= 10 (select |#length| 2))) (not (= (select |#valid| 2) 1)) (<= |#StackHeapBarrier| 0) (and (= main_~r~0 0) (= main_~s~0 1) (<= main_~x~0 1) (<= 1 main_~a~0) (= main_~b~0 main_~y~0) (= main_~q~0 0) (<= 1 main_~y~0) (= main_~a~0 main_~x~0) (<= main_~y~0 1) (= main_~p~0 1)))) [2023-04-01 11:20:25,807 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (or (not (= (select .cse0 0) 48)) (not (= |#NULL.offset| 0)) (not (= 2 (select |#length| 1))) (and (<= 0 main_~y~0) (<= 1 main_~x~0) (<= main_~x~0 1) (<= main_~y~0 1)) (not (= (select |#valid| 3) 1)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) (not (= (select .cse0 1) 0)) (not (= (select |#valid| 1) 1)) (not (= |#NULL.base| 0)) (not (= 10 (select |#length| 2))) (not (= (select |#valid| 2) 1)) (<= |#StackHeapBarrier| 0))) [2023-04-01 11:20:25,807 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 18 59) no Hoare annotation was computed. [2023-04-01 11:20:25,807 INFO L895 garLoopResultBuilder]: At program point L56(line 56) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (or (not (= (select .cse0 0) 48)) (not (= |#NULL.offset| 0)) (not (= 2 (select |#length| 1))) (not (= (select |#valid| 3) 1)) (and (= main_~r~0 0) (<= main_~y~0 2147483647) (= main_~s~0 1) (<= main_~x~0 2147483647) (= main_~b~0 main_~y~0) (<= 0 (+ main_~x~0 2147483648)) (<= 0 (+ main_~y~0 2147483648)) (= main_~q~0 0) (= main_~a~0 main_~x~0) (= main_~p~0 1)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) (not (= (select .cse0 1) 0)) (not (= (select |#valid| 1) 1)) (not (= |#NULL.base| 0)) (not (= 10 (select |#length| 2))) (not (= (select |#valid| 2) 1)) (<= |#StackHeapBarrier| 0))) [2023-04-01 11:20:25,807 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (or (not (= (select .cse0 0) 48)) (not (= |#NULL.offset| 0)) (not (= 2 (select |#length| 1))) (not (= (select |#valid| 3) 1)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) (not (= (select .cse0 1) 0)) (not (= (select |#valid| 1) 1)) (not (= |#NULL.base| 0)) (not (= 10 (select |#length| 2))) (not (= (select |#valid| 2) 1)) (<= |#StackHeapBarrier| 0) (and (= main_~r~0 0) (= main_~s~0 1) (<= main_~x~0 1) (<= 1 main_~a~0) (= main_~b~0 main_~y~0) (= main_~q~0 0) (<= 1 main_~y~0) (= main_~a~0 main_~x~0) (<= main_~y~0 1) (= main_~p~0 1)))) [2023-04-01 11:20:25,807 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 18 59) the Hoare annotation is: true [2023-04-01 11:20:25,807 INFO L899 garLoopResultBuilder]: For program point L38(lines 35 52) no Hoare annotation was computed. [2023-04-01 11:20:25,807 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (or (not (= (select .cse0 0) 48)) (not (= |#NULL.offset| 0)) (not (= 2 (select |#length| 1))) (not (= (select |#valid| 3) 1)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) (not (= (select .cse0 1) 0)) (not (= (select |#valid| 1) 1)) (not (= |#NULL.base| 0)) (not (= 10 (select |#length| 2))) (not (= (select |#valid| 2) 1)) (<= |#StackHeapBarrier| 0) (and (= main_~r~0 0) (= main_~s~0 1) (<= main_~x~0 1) (<= 1 main_~a~0) (= main_~b~0 main_~y~0) (= main_~q~0 0) (<= 1 main_~y~0) (= main_~a~0 main_~x~0) (<= main_~y~0 1) (= main_~p~0 1)))) [2023-04-01 11:20:25,808 INFO L895 garLoopResultBuilder]: At program point L36-1(line 36) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (or (not (= (select .cse0 0) 48)) (not (= |#NULL.offset| 0)) (not (= 2 (select |#length| 1))) (not (= (select |#valid| 3) 1)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) (not (= (select .cse0 1) 0)) (not (= (select |#valid| 1) 1)) (not (= |#NULL.base| 0)) (not (= 10 (select |#length| 2))) (not (= (select |#valid| 2) 1)) (<= |#StackHeapBarrier| 0) (and (= main_~r~0 0) (= main_~s~0 1) (<= main_~x~0 1) (<= 1 main_~a~0) (= main_~b~0 main_~y~0) (= main_~q~0 0) (<= 1 main_~y~0) (= main_~a~0 main_~x~0) (<= main_~y~0 1) (= main_~p~0 1)))) [2023-04-01 11:20:25,808 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2023-04-01 11:20:25,808 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-04-01 11:20:25,808 INFO L895 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (or (not (= (select .cse0 0) 48)) (not (= |#NULL.offset| 0)) (not (= 2 (select |#length| 1))) (and (<= main_~y~0 2147483647) (<= 0 main_~x~0) (<= main_~x~0 1) (<= 0 (+ main_~y~0 2147483648))) (not (= (select |#valid| 3) 1)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) (not (= (select .cse0 1) 0)) (not (= (select |#valid| 1) 1)) (not (= |#NULL.base| 0)) (not (= 10 (select |#length| 2))) (not (= (select |#valid| 2) 1)) (<= |#StackHeapBarrier| 0))) [2023-04-01 11:20:25,808 INFO L895 garLoopResultBuilder]: At program point L24-1(line 24) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (or (not (= (select .cse0 0) 48)) (not (= |#NULL.offset| 0)) (not (= 2 (select |#length| 1))) (not (= (select |#valid| 3) 1)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) (not (= (select .cse0 1) 0)) (not (= (select |#valid| 1) 1)) (not (= |#NULL.base| 0)) (not (= 10 (select |#length| 2))) (not (= (select |#valid| 2) 1)) (<= |#StackHeapBarrier| 0) (and (<= 0 main_~y~0) (<= 0 main_~x~0) (<= main_~x~0 1) (<= main_~y~0 1)))) [2023-04-01 11:20:25,808 INFO L895 garLoopResultBuilder]: At program point L55(line 55) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (or (not (= (select .cse0 0) 48)) (not (= |#NULL.offset| 0)) (not (= 2 (select |#length| 1))) (not (= (select |#valid| 3) 1)) (and (= main_~r~0 0) (<= main_~y~0 2147483647) (= main_~s~0 1) (<= main_~x~0 2147483647) (= main_~b~0 main_~y~0) (<= 0 (+ main_~x~0 2147483648)) (<= 0 (+ main_~y~0 2147483648)) (= main_~q~0 0) (= main_~a~0 main_~x~0) (= main_~p~0 1)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) (not (= (select .cse0 1) 0)) (not (= (select |#valid| 1) 1)) (not (= |#NULL.base| 0)) (not (= 10 (select |#length| 2))) (not (= (select |#valid| 2) 1)) (<= |#StackHeapBarrier| 0))) [2023-04-01 11:20:25,808 INFO L895 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (or (not (= (select .cse0 0) 48)) (not (= |#NULL.offset| 0)) (not (= 2 (select |#length| 1))) (and (<= main_~x~0 2147483647) (<= 0 (+ main_~x~0 2147483648))) (not (= (select |#valid| 3) 1)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) (not (= (select .cse0 1) 0)) (not (= (select |#valid| 1) 1)) (not (= |#NULL.base| 0)) (not (= 10 (select |#length| 2))) (not (= (select |#valid| 2) 1)) (<= |#StackHeapBarrier| 0))) [2023-04-01 11:20:25,808 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2023-04-01 11:20:25,808 INFO L895 garLoopResultBuilder]: At program point L43-2(lines 35 52) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (or (not (= (select .cse0 0) 48)) (not (= |#NULL.offset| 0)) (not (= 2 (select |#length| 1))) (not (= (select |#valid| 3) 1)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) (not (= (select .cse0 1) 0)) (not (= (select |#valid| 1) 1)) (not (= |#NULL.base| 0)) (not (= 10 (select |#length| 2))) (not (= (select |#valid| 2) 1)) (<= |#StackHeapBarrier| 0) (and (= main_~r~0 0) (= main_~s~0 1) (<= main_~x~0 1) (<= 1 main_~a~0) (= main_~b~0 main_~y~0) (= main_~q~0 0) (<= 1 main_~y~0) (= main_~a~0 main_~x~0) (<= main_~y~0 1) (= main_~p~0 1)))) [2023-04-01 11:20:25,808 INFO L895 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (or (not (= (select .cse0 0) 48)) (not (= |#NULL.offset| 0)) (not (= 2 (select |#length| 1))) (not (= (select |#valid| 3) 1)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) (not (= (select .cse0 1) 0)) (not (= (select |#valid| 1) 1)) (not (= |#NULL.base| 0)) (not (= 10 (select |#length| 2))) (not (= (select |#valid| 2) 1)) (<= |#StackHeapBarrier| 0) (and (= main_~r~0 0) (= main_~s~0 1) (<= main_~x~0 1) (<= 1 main_~a~0) (= main_~b~0 main_~y~0) (= main_~q~0 0) (<= 1 main_~y~0) (= main_~a~0 main_~x~0) (<= main_~y~0 1) (= main_~p~0 1)))) [2023-04-01 11:20:25,809 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2023-04-01 11:20:25,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 11:20:25,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 11:20:25,809 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= 10 (select |#length| 2)) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2023-04-01 11:20:25,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 11:20:25,809 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 11:20:25,809 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 13) no Hoare annotation was computed. [2023-04-01 11:20:25,809 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2023-04-01 11:20:25,809 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 16) no Hoare annotation was computed. [2023-04-01 11:20:25,809 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 10 16) the Hoare annotation is: true [2023-04-01 11:20:25,809 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 10 16) no Hoare annotation was computed. [2023-04-01 11:20:25,809 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2023-04-01 11:20:25,811 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-04-01 11:20:25,813 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 11:20:25,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 11:20:25 BoogieIcfgContainer [2023-04-01 11:20:25,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 11:20:25,825 INFO L158 Benchmark]: Toolchain (without parser) took 9156.69ms. Allocated memory was 281.0MB in the beginning and 339.7MB in the end (delta: 58.7MB). Free memory was 247.2MB in the beginning and 112.1MB in the end (delta: 135.1MB). Peak memory consumption was 194.9MB. Max. memory is 8.0GB. [2023-04-01 11:20:25,825 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 11:20:25,825 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.20ms. Allocated memory is still 281.0MB. Free memory was 246.7MB in the beginning and 236.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-04-01 11:20:25,826 INFO L158 Benchmark]: Boogie Preprocessor took 44.43ms. Allocated memory is still 281.0MB. Free memory was 236.1MB in the beginning and 234.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-04-01 11:20:25,826 INFO L158 Benchmark]: RCFGBuilder took 335.45ms. Allocated memory is still 281.0MB. Free memory was 234.6MB in the beginning and 220.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-04-01 11:20:25,826 INFO L158 Benchmark]: TraceAbstraction took 8587.37ms. Allocated memory was 281.0MB in the beginning and 339.7MB in the end (delta: 58.7MB). Free memory was 219.9MB in the beginning and 112.1MB in the end (delta: 107.8MB). Peak memory consumption was 167.6MB. Max. memory is 8.0GB. [2023-04-01 11:20:25,827 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 185.20ms. Allocated memory is still 281.0MB. Free memory was 246.7MB in the beginning and 236.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.43ms. Allocated memory is still 281.0MB. Free memory was 236.1MB in the beginning and 234.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 335.45ms. Allocated memory is still 281.0MB. Free memory was 234.6MB in the beginning and 220.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 8587.37ms. Allocated memory was 281.0MB in the beginning and 339.7MB in the end (delta: 58.7MB). Free memory was 219.9MB in the beginning and 112.1MB in the end (delta: 107.8MB). Peak memory consumption was 167.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 323 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 196 mSDsCounter, 192 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 510 IncrementalHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 192 mSolverCounterUnsat, 127 mSDtfsCounter, 510 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 318 GetRequests, 246 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=4, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 41 PreInvPairs, 49 NumberOfFragments, 1216 HoareAnnotationTreeSize, 41 FomulaSimplifications, 136 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 18 FomulaSimplificationsInter, 1165 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 203 NumberOfCodeBlocks, 203 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 241 ConstructedInterpolants, 0 QuantifiedInterpolants, 610 SizeOfPredicates, 20 NumberOfNonLiveVariables, 606 ConjunctsInSsa, 95 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 174/188 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 1.6s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 10, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 55, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 31, TOOLS_POST_TIME: 0.1s, TOOLS_POST_CALL_APPLICATIONS: 49, TOOLS_POST_CALL_TIME: 0.4s, TOOLS_POST_RETURN_APPLICATIONS: 30, TOOLS_POST_RETURN_TIME: 0.3s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 110, TOOLS_QUANTIFIERELIM_TIME: 0.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 146, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 53, DOMAIN_JOIN_TIME: 0.6s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 55, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 30, CALL_SUMMARIZER_CACHE_MISSES: 6, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 615, DAG_COMPRESSION_RETAINED_NODES: 162, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((((((((!(unknown-#memory_int-unknown[1][0] == 48) || !(#NULL == 0)) || !(2 == unknown-#length-unknown[1])) || !(\valid[3] == 1)) || !(unknown-#length-unknown[3] == 12)) || !(\valid[0] == 0)) || !(unknown-#memory_int-unknown[1][1] == 0)) || !(\valid[1] == 1)) || !(#NULL == 0)) || !(10 == unknown-#length-unknown[2])) || !(\valid[2] == 1)) || unknown-#StackHeapBarrier-unknown <= 0) || (((((((((r == 0 && s == 1) && x <= 1) && 1 <= a) && b == y) && q == 0) && 1 <= y) && a == x) && y <= 1) && p == 1) RESULT: Ultimate proved your program to be correct! [2023-04-01 11:20:25,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...