./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/modulus-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/modulus-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c8679dad194af8e09f8dc0270d50ea9ce875abb3 .............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:26:14,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:14,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:14,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:14,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:14,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:14,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:14,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:14,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:14,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:14,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:14,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:14,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:14,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:14,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:14,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:14,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:14,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:14,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:14,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:14,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:14,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:14,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:14,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:14,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:14,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:14,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:14,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:14,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:14,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:14,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:14,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:14,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:14,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:14,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:14,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:14,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:14,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:14,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:14,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:14,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:14,433 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:26:14,472 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:14,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:14,474 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:14,474 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:14,474 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:14,474 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:14,475 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:26:14,475 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:14,475 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:14,475 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:26:14,476 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:26:14,477 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:14,477 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:26:14,477 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:26:14,477 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:26:14,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:14,478 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:14,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:26:14,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:14,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:14,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:26:14,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:14,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:26:14,480 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:14,480 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:14,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:26:14,480 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:14,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:26:14,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:14,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:14,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:14,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:14,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:14,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:26:14,484 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:26:14,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:26:14,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:26:14,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:14,485 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:14,485 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8679dad194af8e09f8dc0270d50ea9ce875abb3 [2021-10-11 02:26:14,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:14,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:14,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:14,786 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:14,786 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:14,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/bitvector/modulus-2.i [2021-10-11 02:26:14,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI/data/b7accb82c/d044bbde8bde4e489842edbfdfcad795/FLAG08a905742 [2021-10-11 02:26:15,393 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:15,394 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/sv-benchmarks/c/bitvector/modulus-2.i [2021-10-11 02:26:15,406 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI/data/b7accb82c/d044bbde8bde4e489842edbfdfcad795/FLAG08a905742 [2021-10-11 02:26:15,736 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI/data/b7accb82c/d044bbde8bde4e489842edbfdfcad795 [2021-10-11 02:26:15,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:15,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:15,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:15,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:15,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:15,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:15" (1/1) ... [2021-10-11 02:26:15,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c77438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:15, skipping insertion in model container [2021-10-11 02:26:15,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:15" (1/1) ... [2021-10-11 02:26:15,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:15,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:15,974 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/sv-benchmarks/c/bitvector/modulus-2.i[947,960] [2021-10-11 02:26:15,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:15,998 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:26:16,011 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/sv-benchmarks/c/bitvector/modulus-2.i[947,960] [2021-10-11 02:26:16,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:16,031 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:26:16,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:16 WrapperNode [2021-10-11 02:26:16,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:16,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:16,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:26:16,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:26:16,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:16" (1/1) ... [2021-10-11 02:26:16,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:16" (1/1) ... [2021-10-11 02:26:16,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:16,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:26:16,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:26:16,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:26:16,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:16" (1/1) ... [2021-10-11 02:26:16,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:16" (1/1) ... [2021-10-11 02:26:16,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:16" (1/1) ... [2021-10-11 02:26:16,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:16" (1/1) ... [2021-10-11 02:26:16,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:16" (1/1) ... [2021-10-11 02:26:16,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:16" (1/1) ... [2021-10-11 02:26:16,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:16" (1/1) ... [2021-10-11 02:26:16,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:26:16,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:26:16,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:26:16,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:26:16,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:16" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:26:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:26:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:26:16,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:26:16,572 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:26:16,573 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-11 02:26:16,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:16 BoogieIcfgContainer [2021-10-11 02:26:16,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:26:16,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:26:16,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:26:16,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:26:16,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:26:15" (1/3) ... [2021-10-11 02:26:16,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a505d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:16, skipping insertion in model container [2021-10-11 02:26:16,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:16" (2/3) ... [2021-10-11 02:26:16,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a505d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:16, skipping insertion in model container [2021-10-11 02:26:16,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:16" (3/3) ... [2021-10-11 02:26:16,584 INFO L111 eAbstractionObserver]: Analyzing ICFG modulus-2.i [2021-10-11 02:26:16,598 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:26:16,601 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:26:16,612 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:26:16,635 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:26:16,636 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:26:16,636 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:26:16,636 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:26:16,636 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:26:16,636 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:26:16,637 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:26:16,637 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:26:16,649 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 02:26:16,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:26:16,653 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:16,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:26:16,655 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:16,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:16,660 INFO L82 PathProgramCache]: Analyzing trace with hash 94623488, now seen corresponding path program 1 times [2021-10-11 02:26:16,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:16,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507929247] [2021-10-11 02:26:16,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:16,768 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:26:16,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [969571035] [2021-10-11 02:26:16,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:26:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:16,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-11 02:26:16,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:17,140 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:26:17,168 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 02:26:17,190 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 02:26:17,192 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 02:26:17,206 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 02:26:17,218 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-10-11 02:26:18,077 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 02:26:18,325 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-10-11 02:26:18,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:18,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:18,533 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2021-10-11 02:26:18,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507929247] [2021-10-11 02:26:18,534 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:26:18,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969571035] [2021-10-11 02:26:18,535 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger: modulus not positive [2021-10-11 02:26:18,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [986188321] [2021-10-11 02:26:18,571 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-10-11 02:26:18,572 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:26:18,576 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:26:18,582 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:26:18,583 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:26:18,648 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:26:18,750 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:26:18,865 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2021-10-11 02:26:19,011 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-10-11 02:26:19,275 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2021-10-11 02:26:19,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:19,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:26:19,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215533538] [2021-10-11 02:26:19,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:26:19,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:19,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:26:19,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:26:19,297 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 5 states. [2021-10-11 02:26:19,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:19,380 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2021-10-11 02:26:19,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:26:19,382 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2021-10-11 02:26:19,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:19,389 INFO L225 Difference]: With dead ends: 17 [2021-10-11 02:26:19,389 INFO L226 Difference]: Without dead ends: 8 [2021-10-11 02:26:19,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:26:19,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-10-11 02:26:19,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-10-11 02:26:19,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-11 02:26:19,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2021-10-11 02:26:19,422 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2021-10-11 02:26:19,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:19,423 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-10-11 02:26:19,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:26:19,423 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-10-11 02:26:19,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:26:19,424 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:19,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:19,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-11 02:26:19,638 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:19,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:19,638 INFO L82 PathProgramCache]: Analyzing trace with hash 696247596, now seen corresponding path program 1 times [2021-10-11 02:26:19,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:19,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541477495] [2021-10-11 02:26:19,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:19,664 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:26:19,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2094340814] [2021-10-11 02:26:19,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:26:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:19,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:26:19,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:19,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:19,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:19,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:19,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541477495] [2021-10-11 02:26:19,782 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:26:19,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094340814] [2021-10-11 02:26:19,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:19,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2021-10-11 02:26:19,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694161974] [2021-10-11 02:26:19,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:26:19,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:19,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:26:19,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:19,786 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 5 states. [2021-10-11 02:26:19,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:19,825 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2021-10-11 02:26:19,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:26:19,826 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2021-10-11 02:26:19,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:19,827 INFO L225 Difference]: With dead ends: 14 [2021-10-11 02:26:19,827 INFO L226 Difference]: Without dead ends: 9 [2021-10-11 02:26:19,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:26:19,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-11 02:26:19,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-11 02:26:19,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-11 02:26:19,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-10-11 02:26:19,832 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 7 [2021-10-11 02:26:19,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:19,833 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-11 02:26:19,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:26:19,833 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-10-11 02:26:19,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:26:19,833 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:19,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:20,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:26:20,049 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:20,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:20,050 INFO L82 PathProgramCache]: Analyzing trace with hash 69296716, now seen corresponding path program 1 times [2021-10-11 02:26:20,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:20,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876730146] [2021-10-11 02:26:20,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:20,075 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:26:20,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [32475672] [2021-10-11 02:26:20,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:26:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:20,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-11 02:26:20,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:20,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:26:20,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:21,168 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 36 [2021-10-11 02:26:23,581 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse0 (mod c_ULTIMATE.start_main_~d~0 4294967296))) (let ((.cse1 (+ (div (+ (* .cse0 (- 1)) (- 1)) 4294967296) 1))) (or (<= (div (+ .cse0 (- 4294967296)) (- 4294967296)) .cse1) (forall ((v_prenex_1 Int)) (let ((.cse2 (mod c_ULTIMATE.start_main_~d~0 4294967296))) (let ((.cse3 (+ .cse2 (* 4294967296 v_prenex_1)))) (or (<= 0 (div (* (mod (mod (+ .cse2 (* v_prenex_1 4294967296)) .cse2) 4294967296) (- 1)) 4294967296)) (<= 4294967296 .cse3) (< .cse3 0))))) (< 0 .cse1)))) (forall ((aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208 Int) (aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290 Int) (v_prenex_2 Int) (v_prenex_3 Int) (aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290 Int)) (let ((.cse10 (* 4294967296 v_prenex_3)) (.cse8 (* 4294967296 aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290))) (let ((.cse4 (+ .cse8 aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290)) (.cse9 (* 4294967296 v_prenex_2)) (.cse7 (* 4294967296 aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208)) (.cse5 (mod c_ULTIMATE.start_main_~d~0 4294967296)) (.cse6 (+ .cse8 .cse10 aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290))) (or (< .cse4 0) (<= 4294967296 aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290) (<= 4294967296 .cse4) (= .cse5 .cse4) (< .cse6 0) (< .cse5 .cse6) (< .cse7 (+ .cse8 .cse9 .cse10 aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290 1)) (<= (+ .cse8 .cse9 .cse10 aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290 4294967297) .cse7) (<= aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208 (div (+ (* aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290 (- 4294967296)) (mod (mod aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290 .cse5) 4294967296) (* v_prenex_2 (- 4294967296)) (* v_prenex_3 (- 4294967296)) (* aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290 (- 1)) (- 1)) (- 4294967296))) (< aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_208_290 0) (<= 4294967296 .cse6))))) (forall ((aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63 Int) (aux_div_ULTIMATE.start_main_~m~0_41 Int) (aux_div_aux_mod_ULTIMATE.start_main_~m~0_41_52 Int) (aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 Int) (aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 Int)) (let ((.cse15 (* 4294967296 aux_div_ULTIMATE.start_main_~m~0_41)) (.cse17 (* 4294967296 aux_div_aux_mod_ULTIMATE.start_main_~m~0_41_52)) (.cse18 (* 4294967296 aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279))) (let ((.cse16 (mod c_ULTIMATE.start_main_~d~0 4294967296)) (.cse11 (+ aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 .cse18 4294967296)) (.cse13 (+ (* 4294967296 aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63) .cse15 .cse17)) (.cse12 (+ .cse15 .cse17)) (.cse14 (+ aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 .cse18))) (or (< .cse11 .cse12) (<= .cse13 .cse14) (< .cse11 .cse15) (< (+ .cse15 .cse16) .cse11) (< aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 0) (= .cse11 (+ .cse15 .cse16 .cse17)) (<= (div (+ (mod (mod (+ (* aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63 (- 4294967296)) (* aux_div_ULTIMATE.start_main_~m~0_41 (- 4294967296)) (* aux_div_aux_mod_ULTIMATE.start_main_~m~0_41_52 (- 4294967296)) aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 (* aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 4294967296) 4294967296) .cse16) 4294967296) (* aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 (- 1)) (* aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 (- 4294967296)) (- 4294967296)) (- 4294967296)) (+ aux_div_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279 1)) (<= .cse15 .cse14) (< .cse11 .cse13) (<= 4294967296 aux_mod_aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~m~0_41_52_63_279) (<= .cse12 .cse14)))))) is different from false [2021-10-11 02:26:24,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2021-10-11 02:26:24,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876730146] [2021-10-11 02:26:24,393 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:26:24,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32475672] [2021-10-11 02:26:24,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 02:26:24,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-10-11 02:26:24,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796361567] [2021-10-11 02:26:24,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:26:24,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:24,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:26:24,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=29, Unknown=1, NotChecked=10, Total=56 [2021-10-11 02:26:24,395 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 5 states. [2021-10-11 02:26:24,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:24,448 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-10-11 02:26:24,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:26:24,449 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2021-10-11 02:26:24,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:24,449 INFO L225 Difference]: With dead ends: 9 [2021-10-11 02:26:24,449 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:26:24,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=21, Invalid=38, Unknown=1, NotChecked=12, Total=72 [2021-10-11 02:26:24,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:26:24,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:26:24,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:26:24,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:26:24,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-10-11 02:26:24,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:24,450 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:26:24,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:26:24,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:26:24,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:26:24,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:26:24,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:26:24,929 INFO L258 CegarLoopResult]: At program point L48-2(lines 48 51) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string0.base|))) (and (= |#t~string1.offset| 0) (= |#NULL.base| 0) (= (select .cse0 |#t~string0.offset|) 48) (= (select .cse0 (+ |#t~string0.offset| 1)) 0) (= (select |#valid| 0) 0) (= (select |#length| |#t~string1.base|) 12) (= 2 (select |#length| |#t~string0.base|)) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (< (mod ULTIMATE.start_main_~s~0 4294967296) 31) (< 0 (mod ULTIMATE.start_main_~d~0 4294967296)) (< |#StackHeapBarrier| |#t~string0.base|) (= (select |#valid| |#t~string0.base|) 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (< |#StackHeapBarrier| |#t~string1.base|) (= |#NULL.offset| 0) (= (select |#valid| |#t~string1.base|) 1) (= |#t~string0.offset| 0))) [2021-10-11 02:26:24,929 INFO L262 CegarLoopResult]: For program point L44(lines 44 58) no Hoare annotation was computed. [2021-10-11 02:26:24,929 INFO L258 CegarLoopResult]: At program point L44-1(lines 44 58) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string0.base|))) (and (= |#t~string1.offset| 0) (= |#NULL.base| 0) (= (select .cse0 |#t~string0.offset|) 48) (= (select .cse0 (+ |#t~string0.offset| 1)) 0) (= (select |#valid| 0) 0) (= (select |#length| |#t~string1.base|) 12) (= 2 (select |#length| |#t~string0.base|)) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (< (mod ULTIMATE.start_main_~s~0 4294967296) 31) (< |#StackHeapBarrier| |#t~string0.base|) (= (select |#valid| |#t~string0.base|) 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (< |#StackHeapBarrier| |#t~string1.base|) (= |#NULL.offset| 0) (= (select |#valid| |#t~string1.base|) 1) (= |#t~string0.offset| 0))) [2021-10-11 02:26:24,930 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:26:24,930 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2021-10-11 02:26:24,930 INFO L262 CegarLoopResult]: For program point L20(lines 20 22) no Hoare annotation was computed. [2021-10-11 02:26:24,930 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:26:24,930 INFO L262 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2021-10-11 02:26:24,930 INFO L258 CegarLoopResult]: At program point L46-2(lines 46 53) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |#t~string0.base|))) (and (= |#t~string1.offset| 0) (= |#NULL.base| 0) (= (select .cse0 |#t~string0.offset|) 48) (= (select .cse0 (+ |#t~string0.offset| 1)) 0) (= (select |#valid| 0) 0) (= (select |#length| |#t~string1.base|) 12) (= 2 (select |#length| |#t~string0.base|)) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (< (mod ULTIMATE.start_main_~s~0 4294967296) 31) (< 0 (mod ULTIMATE.start_main_~d~0 4294967296)) (< |#StackHeapBarrier| |#t~string0.base|) (= (select |#valid| |#t~string0.base|) 1) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (< |#StackHeapBarrier| |#t~string1.base|) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~m~0) (= |#NULL.offset| 0) (= (select |#valid| |#t~string1.base|) 1) (= |#t~string0.offset| 0))) [2021-10-11 02:26:24,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:26:24 BoogieIcfgContainer [2021-10-11 02:26:24,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:26:24,964 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:26:24,964 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:26:24,964 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:26:24,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:16" (3/4) ... [2021-10-11 02:26:24,967 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:26:24,975 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-11 02:26:24,975 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-11 02:26:24,976 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:26:24,976 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:26:24,997 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((("modulus-2.c" == 0 && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && unknown-#length-unknown["modulus-2.c"] == 12) && 2 == unknown-#length-unknown["0"]) && \old(cond) == 1) && s % 4294967296 < 31) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "modulus-2.c") && #NULL == 0) && \valid["modulus-2.c"] == 1) && "0" == 0 [2021-10-11 02:26:24,997 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((("modulus-2.c" == 0 && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && unknown-#length-unknown["modulus-2.c"] == 12) && 2 == unknown-#length-unknown["0"]) && \old(cond) == 1) && s % 4294967296 < 31) && 0 < d % 4294967296) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "modulus-2.c") && n == m) && #NULL == 0) && \valid["modulus-2.c"] == 1) && "0" == 0 [2021-10-11 02:26:24,997 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((("modulus-2.c" == 0 && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && unknown-#length-unknown["modulus-2.c"] == 12) && 2 == unknown-#length-unknown["0"]) && \old(cond) == 1) && s % 4294967296 < 31) && 0 < d % 4294967296) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "modulus-2.c") && #NULL == 0) && \valid["modulus-2.c"] == 1) && "0" == 0 [2021-10-11 02:26:25,010 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3899f9b4-fcc2-48a7-8fa7-1ded38e5dc21/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:26:25,010 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:26:25,011 INFO L168 Benchmark]: Toolchain (without parser) took 9271.37 ms. Allocated memory was 127.9 MB in the beginning and 172.0 MB in the end (delta: 44.0 MB). Free memory was 91.6 MB in the beginning and 79.4 MB in the end (delta: 12.2 MB). Peak memory consumption was 56.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:25,012 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 127.9 MB. Free memory was 99.5 MB in the beginning and 99.5 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:25,012 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.01 ms. Allocated memory is still 127.9 MB. Free memory was 91.3 MB in the beginning and 101.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:25,013 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.62 ms. Allocated memory is still 127.9 MB. Free memory was 101.0 MB in the beginning and 99.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:25,013 INFO L168 Benchmark]: Boogie Preprocessor took 21.25 ms. Allocated memory is still 127.9 MB. Free memory was 99.7 MB in the beginning and 98.9 MB in the end (delta: 813.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:25,014 INFO L168 Benchmark]: RCFGBuilder took 483.78 ms. Allocated memory is still 127.9 MB. Free memory was 98.2 MB in the beginning and 80.1 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:25,015 INFO L168 Benchmark]: TraceAbstraction took 8386.40 ms. Allocated memory was 127.9 MB in the beginning and 172.0 MB in the end (delta: 44.0 MB). Free memory was 79.4 MB in the beginning and 81.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 44.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:25,015 INFO L168 Benchmark]: Witness Printer took 46.53 ms. Allocated memory is still 172.0 MB. Free memory was 81.5 MB in the beginning and 79.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:25,018 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 127.9 MB. Free memory was 99.5 MB in the beginning and 99.5 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 288.01 ms. Allocated memory is still 127.9 MB. Free memory was 91.3 MB in the beginning and 101.0 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.62 ms. Allocated memory is still 127.9 MB. Free memory was 101.0 MB in the beginning and 99.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.25 ms. Allocated memory is still 127.9 MB. Free memory was 99.7 MB in the beginning and 98.9 MB in the end (delta: 813.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 483.78 ms. Allocated memory is still 127.9 MB. Free memory was 98.2 MB in the beginning and 80.1 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8386.40 ms. Allocated memory was 127.9 MB in the beginning and 172.0 MB in the end (delta: 44.0 MB). Free memory was 79.4 MB in the beginning and 81.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 44.4 MB. Max. memory is 16.1 GB. * Witness Printer took 46.53 ms. Allocated memory is still 172.0 MB. Free memory was 81.5 MB in the beginning and 79.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: ((((((((((((((("modulus-2.c" == 0 && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && unknown-#length-unknown["modulus-2.c"] == 12) && 2 == unknown-#length-unknown["0"]) && \old(cond) == 1) && s % 4294967296 < 31) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "modulus-2.c") && #NULL == 0) && \valid["modulus-2.c"] == 1) && "0" == 0 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((((((((((((((((("modulus-2.c" == 0 && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && unknown-#length-unknown["modulus-2.c"] == 12) && 2 == unknown-#length-unknown["0"]) && \old(cond) == 1) && s % 4294967296 < 31) && 0 < d % 4294967296) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "modulus-2.c") && n == m) && #NULL == 0) && \valid["modulus-2.c"] == 1) && "0" == 0 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: (((((((((((((((("modulus-2.c" == 0 && #NULL == 0) && unknown-#memory_int-unknown["0"]["0"] == 48) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && \valid[0] == 0) && unknown-#length-unknown["modulus-2.c"] == 12) && 2 == unknown-#length-unknown["0"]) && \old(cond) == 1) && s % 4294967296 < 31) && 0 < d % 4294967296) && unknown-#StackHeapBarrier-unknown < "0") && \valid["0"] == 1) && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && unknown-#StackHeapBarrier-unknown < "modulus-2.c") && #NULL == 0) && \valid["modulus-2.c"] == 1) && "0" == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 20 SDslu, 14 SDs, 0 SdLazy, 41 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 235 HoareAnnotationTreeSize, 3 FomulaSimplifications, 208 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 3 QuantifiedInterpolants, 8314 SizeOfPredicates, 11 NumberOfNonLiveVariables, 97 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 5/6 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[ms]: 180, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 5, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 4, TOOLS_POST_TIME[ms]: 117, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 4, TOOLS_QUANTIFIERELIM_TIME[ms]: 114, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 109, FLUID_QUERY_TIME[ms]: 2, FLUID_QUERIES: 9, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME[ms]: 0, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME[ms]: 21, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 0, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 8, DAG_COMPRESSION_PROCESSED_NODES: 25, DAG_COMPRESSION_RETAINED_NODES: 15, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...