/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/in-de32.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-14 21:11:41,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-14 21:11:41,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-14 21:11:41,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-14 21:11:41,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-14 21:11:41,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-14 21:11:41,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-14 21:11:41,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-14 21:11:41,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-14 21:11:41,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-14 21:11:41,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-14 21:11:41,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-14 21:11:41,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-14 21:11:41,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-14 21:11:41,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-14 21:11:41,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-14 21:11:41,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-14 21:11:41,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-14 21:11:41,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-14 21:11:41,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-14 21:11:41,176 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-14 21:11:41,182 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-14 21:11:41,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-14 21:11:41,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-14 21:11:41,184 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-14 21:11:41,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-14 21:11:41,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-14 21:11:41,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-14 21:11:41,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-14 21:11:41,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-14 21:11:41,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-14 21:11:41,185 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-14 21:11:41,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-14 21:11:41,185 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-14 21:11:41,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-14 21:11:41,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-14 21:11:41,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-14 21:11:41,186 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-14 21:11:41,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-14 21:11:41,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-14 21:11:41,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-14 21:11:41,186 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-14 21:11:41,187 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-14 21:11:41,187 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-14 21:11:41,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-14 21:11:41,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-14 21:11:41,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-14 21:11:41,399 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-14 21:11:41,400 INFO L275 PluginConnector]: CDTParser initialized [2022-02-14 21:11:41,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/in-de32.c [2022-02-14 21:11:41,461 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a7d85a1/112419ddef464ae1aa9cd66b8a5191ea/FLAGf190c6c18 [2022-02-14 21:11:41,797 INFO L306 CDTParser]: Found 1 translation units. [2022-02-14 21:11:41,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de32.c [2022-02-14 21:11:41,803 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a7d85a1/112419ddef464ae1aa9cd66b8a5191ea/FLAGf190c6c18 [2022-02-14 21:11:42,237 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a7d85a1/112419ddef464ae1aa9cd66b8a5191ea [2022-02-14 21:11:42,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-14 21:11:42,240 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-14 21:11:42,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-14 21:11:42,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-14 21:11:42,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-14 21:11:42,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 09:11:42" (1/1) ... [2022-02-14 21:11:42,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e69997a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:11:42, skipping insertion in model container [2022-02-14 21:11:42,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 09:11:42" (1/1) ... [2022-02-14 21:11:42,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-14 21:11:42,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-14 21:11:42,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de32.c[368,381] [2022-02-14 21:11:42,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-14 21:11:42,396 INFO L203 MainTranslator]: Completed pre-run [2022-02-14 21:11:42,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de32.c[368,381] [2022-02-14 21:11:42,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-14 21:11:42,421 INFO L208 MainTranslator]: Completed translation [2022-02-14 21:11:42,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:11:42 WrapperNode [2022-02-14 21:11:42,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-14 21:11:42,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-14 21:11:42,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-14 21:11:42,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-14 21:11:42,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:11:42" (1/1) ... [2022-02-14 21:11:42,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:11:42" (1/1) ... [2022-02-14 21:11:42,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:11:42" (1/1) ... [2022-02-14 21:11:42,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:11:42" (1/1) ... [2022-02-14 21:11:42,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:11:42" (1/1) ... [2022-02-14 21:11:42,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:11:42" (1/1) ... [2022-02-14 21:11:42,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:11:42" (1/1) ... [2022-02-14 21:11:42,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-14 21:11:42,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-14 21:11:42,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-14 21:11:42,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-14 21:11:42,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:11:42" (1/1) ... [2022-02-14 21:11:42,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-14 21:11:42,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 21:11:42,481 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) [2022-02-14 21:11:42,483 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 [2022-02-14 21:11:42,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-14 21:11:42,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-14 21:11:42,506 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-14 21:11:42,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-14 21:11:42,506 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-14 21:11:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-14 21:11:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-14 21:11:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-14 21:11:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-14 21:11:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-02-14 21:11:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-14 21:11:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-14 21:11:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-14 21:11:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-14 21:11:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-14 21:11:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-14 21:11:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-14 21:11:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-14 21:11:42,552 INFO L234 CfgBuilder]: Building ICFG [2022-02-14 21:11:42,553 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-14 21:11:42,647 INFO L275 CfgBuilder]: Performing block encoding [2022-02-14 21:11:42,651 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-14 21:11:42,651 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-02-14 21:11:42,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 09:11:42 BoogieIcfgContainer [2022-02-14 21:11:42,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-14 21:11:42,653 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-14 21:11:42,653 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-14 21:11:42,654 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-14 21:11:42,656 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 09:11:42" (1/1) ... [2022-02-14 21:11:42,847 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 2 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-14 21:11:42,847 INFO L91 elerationTransformer]: Accelerated Formula: (and (= v_main_~x~0_7 (+ v_main_~x~0_6 1)) (< 0 (mod v_main_~x~0_7 4294967296)) (= v_main_~y~0_5 (+ v_main_~y~0_6 1))) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_6} OutVars{main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_5, main_#t~post5=|v_main_#t~post5_1|, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_#t~post5, main_#t~post6] to Formula: (let ((.cse0 (mod v_main_~x~0_7 4294967296))) (or (and (= |v_main_#t~post5_3| |v_main_#t~post5_1|) (= |v_main_#t~post6_3| |v_main_#t~post6_1|) (<= .cse0 0) (= v_main_~x~0_7 v_main_~x~0_6) (= v_main_~y~0_6 v_main_~y~0_5)) (and (< 0 .cse0) (forall ((v_it_1 Int)) (or (< 0 (mod (+ v_main_~x~0_7 (* v_it_1 4294967295)) 4294967296)) (not (<= 1 v_it_1)) (not (<= (+ v_main_~y~0_6 v_it_1 1) v_main_~y~0_5)))) (< v_main_~y~0_6 v_main_~y~0_5) (= v_main_~x~0_6 (+ v_main_~x~0_7 v_main_~y~0_6 (* (- 1) v_main_~y~0_5)))))) InVars {main_~y~0=v_main_~y~0_6, main_#t~post5=|v_main_#t~post5_3|, main_~x~0=v_main_~x~0_7, main_#t~post6=|v_main_#t~post6_3|} OutVars{main_~y~0=v_main_~y~0_5, main_#t~post5=|v_main_#t~post5_1|, main_~x~0=v_main_~x~0_6, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_#t~post5, main_#t~post6] [2022-02-14 21:11:42,929 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 2 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-14 21:11:42,929 INFO L91 elerationTransformer]: Accelerated Formula: (and (< 0 (mod v_main_~z~0_5 4294967296)) (= v_main_~x~0_8 (+ v_main_~x~0_9 1)) (= v_main_~z~0_5 (+ v_main_~z~0_4 1))) InVars {main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_5} OutVars{main_~x~0=v_main_~x~0_8, main_~z~0=v_main_~z~0_4, main_#t~post8=|v_main_#t~post8_1|, main_#t~post7=|v_main_#t~post7_1|} AuxVars[] AssignedVars[main_~x~0, main_~z~0, main_#t~post8, main_#t~post7] to Formula: (let ((.cse0 (mod v_main_~z~0_5 4294967296))) (or (and (= v_main_~x~0_9 v_main_~x~0_8) (<= .cse0 0) (= v_main_~z~0_5 v_main_~z~0_4) (= |v_main_#t~post7_3| |v_main_#t~post7_1|) (= |v_main_#t~post8_3| |v_main_#t~post8_1|)) (and (< 0 .cse0) (= v_main_~x~0_8 (+ (* (- 1) v_main_~z~0_4) v_main_~x~0_9 v_main_~z~0_5)) (forall ((v_it_2 Int)) (or (not (<= 1 v_it_2)) (not (<= (+ v_main_~z~0_4 v_it_2 1) v_main_~z~0_5)) (< 0 (mod (+ v_main_~z~0_5 (* v_it_2 4294967295)) 4294967296)))) (< v_main_~z~0_4 v_main_~z~0_5)))) InVars {main_~x~0=v_main_~x~0_9, main_#t~post8=|v_main_#t~post8_3|, main_~z~0=v_main_~z~0_5, main_#t~post7=|v_main_#t~post7_3|} OutVars{main_~x~0=v_main_~x~0_8, main_#t~post8=|v_main_#t~post8_1|, main_~z~0=v_main_~z~0_4, main_#t~post7=|v_main_#t~post7_1|} AuxVars[] AssignedVars[main_~x~0, main_~z~0, main_#t~post8, main_#t~post7] [2022-02-14 21:11:43,054 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 2 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-14 21:11:43,054 INFO L91 elerationTransformer]: Accelerated Formula: (and (= v_main_~x~0_3 (+ v_main_~x~0_2 1)) (< 0 (mod v_main_~y~0_4 4294967296)) (= v_main_~y~0_4 (+ v_main_~y~0_3 1))) InVars {main_~x~0=v_main_~x~0_3, main_~y~0=v_main_~y~0_4} OutVars{main_#t~post10=|v_main_#t~post10_1|, main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_3, main_#t~post9=|v_main_#t~post9_1|} AuxVars[] AssignedVars[main_#t~post10, main_~x~0, main_~y~0, main_#t~post9] to Formula: (let ((.cse0 (mod v_main_~y~0_4 4294967296))) (or (and (< 0 .cse0) (forall ((v_it_3 Int)) (or (not (<= 1 v_it_3)) (< 0 (mod (+ v_main_~y~0_4 (* v_it_3 4294967295)) 4294967296)) (not (<= (+ v_main_~y~0_3 v_it_3 1) v_main_~y~0_4)))) (= (+ v_main_~x~0_3 v_main_~y~0_3 (* (- 1) v_main_~y~0_4)) v_main_~x~0_2) (< v_main_~y~0_3 v_main_~y~0_4)) (and (= |v_main_#t~post10_3| |v_main_#t~post10_1|) (= v_main_~y~0_4 v_main_~y~0_3) (<= .cse0 0) (= v_main_~x~0_3 v_main_~x~0_2) (= |v_main_#t~post9_3| |v_main_#t~post9_1|)))) InVars {main_~y~0=v_main_~y~0_4, main_#t~post10=|v_main_#t~post10_3|, main_~x~0=v_main_~x~0_3, main_#t~post9=|v_main_#t~post9_3|} OutVars{main_~y~0=v_main_~y~0_3, main_#t~post10=|v_main_#t~post10_1|, main_~x~0=v_main_~x~0_2, main_#t~post9=|v_main_#t~post9_1|} AuxVars[] AssignedVars[main_#t~post10, main_~x~0, main_~y~0, main_#t~post9] [2022-02-14 21:11:43,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.02 09:11:43 BasicIcfg [2022-02-14 21:11:43,057 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-14 21:11:43,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-14 21:11:43,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-14 21:11:43,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-14 21:11:43,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 09:11:42" (1/4) ... [2022-02-14 21:11:43,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f3ecc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 09:11:43, skipping insertion in model container [2022-02-14 21:11:43,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:11:42" (2/4) ... [2022-02-14 21:11:43,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f3ecc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 09:11:43, skipping insertion in model container [2022-02-14 21:11:43,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 09:11:42" (3/4) ... [2022-02-14 21:11:43,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f3ecc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 09:11:43, skipping insertion in model container [2022-02-14 21:11:43,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.02 09:11:43" (4/4) ... [2022-02-14 21:11:43,065 INFO L111 eAbstractionObserver]: Analyzing ICFG in-de32.cJordan [2022-02-14 21:11:43,068 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-14 21:11:43,068 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-14 21:11:43,095 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-14 21:11:43,100 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-14 21:11:43,100 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-14 21:11:43,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-14 21:11:43,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-02-14 21:11:43,114 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 21:11:43,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 21:11:43,115 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 21:11:43,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 21:11:43,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1909530012, now seen corresponding path program 1 times [2022-02-14 21:11:43,124 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 21:11:43,125 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172100781] [2022-02-14 21:11:43,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:11:43,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 21:11:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:43,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 21:11:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:43,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 21:11:43,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 21:11:43,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172100781] [2022-02-14 21:11:43,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172100781] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 21:11:43,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 21:11:43,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-14 21:11:43,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625814928] [2022-02-14 21:11:43,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 21:11:43,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-14 21:11:43,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 21:11:43,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-14 21:11:43,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-14 21:11:43,278 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:43,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 21:11:43,303 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2022-02-14 21:11:43,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-14 21:11:43,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-02-14 21:11:43,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 21:11:43,319 INFO L225 Difference]: With dead ends: 22 [2022-02-14 21:11:43,319 INFO L226 Difference]: Without dead ends: 15 [2022-02-14 21:11:43,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-14 21:11:43,327 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 15 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-14 21:11:43,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 26 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-14 21:11:43,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-02-14 21:11:43,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-02-14 21:11:43,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:43,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-02-14 21:11:43,350 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 14 [2022-02-14 21:11:43,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 21:11:43,350 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-02-14 21:11:43,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:43,351 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-02-14 21:11:43,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-02-14 21:11:43,351 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 21:11:43,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 21:11:43,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-14 21:11:43,352 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 21:11:43,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 21:11:43,354 INFO L85 PathProgramCache]: Analyzing trace with hash -137167005, now seen corresponding path program 1 times [2022-02-14 21:11:43,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 21:11:43,355 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596430890] [2022-02-14 21:11:43,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:11:43,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 21:11:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:43,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 21:11:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:43,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 21:11:43,474 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 21:11:43,474 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596430890] [2022-02-14 21:11:43,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596430890] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 21:11:43,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 21:11:43,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-14 21:11:43,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458705238] [2022-02-14 21:11:43,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 21:11:43,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-14 21:11:43,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 21:11:43,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-14 21:11:43,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-14 21:11:43,477 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:43,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 21:11:43,526 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2022-02-14 21:11:43,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-14 21:11:43,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-02-14 21:11:43,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 21:11:43,528 INFO L225 Difference]: With dead ends: 21 [2022-02-14 21:11:43,528 INFO L226 Difference]: Without dead ends: 18 [2022-02-14 21:11:43,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-14 21:11:43,530 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-14 21:11:43,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 33 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2022-02-14 21:11:43,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-02-14 21:11:43,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-02-14 21:11:43,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:43,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2022-02-14 21:11:43,533 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 14 [2022-02-14 21:11:43,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 21:11:43,533 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2022-02-14 21:11:43,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:43,534 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-02-14 21:11:43,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-02-14 21:11:43,534 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 21:11:43,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 21:11:43,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-14 21:11:43,534 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 21:11:43,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 21:11:43,535 INFO L85 PathProgramCache]: Analyzing trace with hash 69510770, now seen corresponding path program 1 times [2022-02-14 21:11:43,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 21:11:43,535 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358538287] [2022-02-14 21:11:43,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:11:43,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 21:11:43,543 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_3.0))) (+ main_~y~0_5 .cse0 (* (- 4294967296) (div (+ main_~y~0_5 .cse0) 4294967296)))) 0)) [2022-02-14 21:11:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:43,592 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_3.1))) (+ main_~y~0_5 .cse0 (* (- 4294967296) (div (+ main_~y~0_5 .cse0) 4294967296)))) 0)) [2022-02-14 21:11:43,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 21:11:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:43,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 21:11:43,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 21:11:43,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358538287] [2022-02-14 21:11:43,670 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358538287] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-14 21:11:43,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981882963] [2022-02-14 21:11:43,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:11:43,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 21:11:43,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 21:11:43,672 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) [2022-02-14 21:11:43,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-14 21:11:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:43,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-14 21:11:43,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-14 21:11:43,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 21:11:43,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-14 21:11:46,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 21:11:46,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981882963] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-14 21:11:46,581 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-14 21:11:46,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2022-02-14 21:11:46,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927039029] [2022-02-14 21:11:46,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-14 21:11:46,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-14 21:11:46,583 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 21:11:46,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-14 21:11:46,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=140, Unknown=1, NotChecked=0, Total=182 [2022-02-14 21:11:46,585 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 11 states have internal predecessors, (21), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:48,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 21:11:48,960 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2022-02-14 21:11:48,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-14 21:11:48,961 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 11 states have internal predecessors, (21), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-02-14 21:11:48,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 21:11:48,962 INFO L225 Difference]: With dead ends: 26 [2022-02-14 21:11:48,962 INFO L226 Difference]: Without dead ends: 23 [2022-02-14 21:11:48,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=107, Invalid=354, Unknown=1, NotChecked=0, Total=462 [2022-02-14 21:11:48,963 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 19 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-14 21:11:48,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 67 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 26 Unchecked, 0.0s Time] [2022-02-14 21:11:48,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-02-14 21:11:48,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2022-02-14 21:11:48,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:48,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-02-14 21:11:48,966 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 15 [2022-02-14 21:11:48,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 21:11:48,966 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-02-14 21:11:48,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 11 states have internal predecessors, (21), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:48,966 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2022-02-14 21:11:48,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-02-14 21:11:48,967 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 21:11:48,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 21:11:48,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-14 21:11:49,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 21:11:49,168 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 21:11:49,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 21:11:49,168 INFO L85 PathProgramCache]: Analyzing trace with hash 842497847, now seen corresponding path program 1 times [2022-02-14 21:11:49,168 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 21:11:49,168 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325207787] [2022-02-14 21:11:49,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:11:49,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 21:11:49,173 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_2.0))) (+ main_~z~0_7 .cse0 (* (- 4294967296) (div (+ main_~z~0_7 .cse0) 4294967296)))) 0)) [2022-02-14 21:11:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:49,189 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_2.1))) (+ main_~z~0_7 .cse0 (* (- 4294967296) (div (+ main_~z~0_7 .cse0) 4294967296)))) 0)) [2022-02-14 21:11:49,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 21:11:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:49,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 21:11:49,257 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 21:11:49,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325207787] [2022-02-14 21:11:49,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325207787] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-14 21:11:49,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551619022] [2022-02-14 21:11:49,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:11:49,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 21:11:49,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 21:11:49,259 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) [2022-02-14 21:11:49,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-14 21:11:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:49,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-14 21:11:49,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-14 21:11:49,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 21:11:49,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-14 21:11:51,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 21:11:51,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551619022] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-14 21:11:51,763 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-14 21:11:51,763 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 14 [2022-02-14 21:11:51,763 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722420760] [2022-02-14 21:11:51,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-14 21:11:51,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-14 21:11:51,764 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 21:11:51,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-14 21:11:51,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=141, Unknown=1, NotChecked=0, Total=182 [2022-02-14 21:11:51,764 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 11 states have internal predecessors, (24), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:51,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 21:11:51,951 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2022-02-14 21:11:51,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-14 21:11:51,951 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 11 states have internal predecessors, (24), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-02-14 21:11:51,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 21:11:51,953 INFO L225 Difference]: With dead ends: 31 [2022-02-14 21:11:51,953 INFO L226 Difference]: Without dead ends: 27 [2022-02-14 21:11:51,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=100, Invalid=361, Unknown=1, NotChecked=0, Total=462 [2022-02-14 21:11:51,953 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 23 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-14 21:11:51,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 59 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 66 Invalid, 0 Unknown, 22 Unchecked, 0.0s Time] [2022-02-14 21:11:51,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-02-14 21:11:51,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2022-02-14 21:11:51,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:51,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-02-14 21:11:51,956 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 15 [2022-02-14 21:11:51,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 21:11:51,956 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-02-14 21:11:51,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 11 states have internal predecessors, (24), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:51,957 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-02-14 21:11:51,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-02-14 21:11:51,957 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 21:11:51,957 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 21:11:51,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-14 21:11:52,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-02-14 21:11:52,164 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 21:11:52,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 21:11:52,165 INFO L85 PathProgramCache]: Analyzing trace with hash -2113412797, now seen corresponding path program 2 times [2022-02-14 21:11:52,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 21:11:52,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131962052] [2022-02-14 21:11:52,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:11:52,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 21:11:52,170 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_3.0))) (+ main_~y~0_5 .cse0 (* (- 4294967296) (div (+ main_~y~0_5 .cse0) 4294967296)))) 0)) [2022-02-14 21:11:52,171 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_3.1))) (+ main_~y~0_9 .cse0 (* (- 4294967296) (div (+ main_~y~0_9 .cse0) 4294967296)))) 0)) [2022-02-14 21:11:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:52,195 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_3.3))) (+ main_~y~0_5 .cse0 (* (- 4294967296) (div (+ main_~y~0_5 .cse0) 4294967296)))) 0)) [2022-02-14 21:11:52,214 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_3.4))) (+ main_~y~0_9 .cse0 (* (- 4294967296) (div (+ main_~y~0_9 .cse0) 4294967296)))) 0)) [2022-02-14 21:11:52,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 21:11:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:52,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-14 21:11:52,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 21:11:52,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131962052] [2022-02-14 21:11:52,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131962052] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-14 21:11:52,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732806286] [2022-02-14 21:11:52,283 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-14 21:11:52,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 21:11:52,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 21:11:52,284 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) [2022-02-14 21:11:52,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-14 21:11:52,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-14 21:11:52,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-14 21:11:52,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-14 21:11:52,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-14 21:11:52,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-14 21:11:52,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-14 21:11:58,162 WARN L838 $PredicateComparison]: unable to prove that (forall ((aux_mod_v_main_~x~0_17_31 Int)) (or (<= aux_mod_v_main_~x~0_17_31 0) (let ((.cse0 (< 0 (mod c_main_~y~0 4294967296)))) (and (or .cse0 (forall ((aux_div_v_main_~x~0_17_31 Int)) (not (= (+ aux_mod_v_main_~x~0_17_31 (* aux_div_v_main_~x~0_17_31 4294967296)) c_main_~x~0)))) (or (not .cse0) (and (forall ((aux_div_v_main_~x~0_17_31 Int) (aux_mod_v_main_~x~0_18_70 Int) (aux_div_v_main_~x~0_18_70 Int)) (let ((.cse1 (+ aux_mod_v_main_~x~0_18_70 (* aux_div_v_main_~x~0_18_70 4294967296)))) (or (exists ((v_it_3 Int)) (and (not (< 0 (mod (+ (* v_it_3 4294967295) c_main_~y~0) 4294967296))) (<= 1 v_it_3) (<= (+ aux_mod_v_main_~x~0_18_70 (* aux_div_v_main_~x~0_18_70 4294967296) v_it_3 1) (+ (* 4294967296 c_main_~x~0) c_main_~y~0)))) (exists ((v_it_3 Int)) (and (not (< 0 (mod (+ aux_mod_v_main_~x~0_18_70 (* v_it_3 4294967295)) 4294967296))) (<= (+ aux_mod_v_main_~x~0_17_31 v_it_3 (* aux_div_v_main_~x~0_17_31 4294967296) (* 4294967295 c_main_~x~0) c_main_~y~0 1) (+ aux_mod_v_main_~x~0_18_70 (* aux_div_v_main_~x~0_18_70 4294967296))) (<= 1 v_it_3))) (<= .cse1 (+ aux_mod_v_main_~x~0_17_31 (* aux_div_v_main_~x~0_17_31 4294967296) (* 4294967295 c_main_~x~0) c_main_~y~0)) (<= aux_mod_v_main_~x~0_18_70 0) (<= (+ (* 4294967296 c_main_~x~0) c_main_~y~0) .cse1) (<= 4294967296 aux_mod_v_main_~x~0_18_70)))) (or (forall ((aux_div_v_main_~x~0_17_31 Int)) (or (exists ((v_it_3 Int)) (and (not (< 0 (mod (+ (* v_it_3 4294967295) c_main_~y~0) 4294967296))) (<= 1 v_it_3) (<= (+ aux_mod_v_main_~x~0_17_31 v_it_3 (* aux_div_v_main_~x~0_17_31 4294967296) 1) c_main_~x~0))) (not (< (+ aux_mod_v_main_~x~0_17_31 (* aux_div_v_main_~x~0_17_31 4294967296)) c_main_~x~0)))) (< 0 (mod (+ aux_mod_v_main_~x~0_17_31 (* 4294967295 c_main_~x~0) c_main_~y~0) 4294967296))))))) (<= 4294967296 aux_mod_v_main_~x~0_17_31))) is different from false [2022-02-14 21:12:03,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-02-14 21:12:03,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732806286] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-14 21:12:03,608 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-14 21:12:03,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 15 [2022-02-14 21:12:03,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437592130] [2022-02-14 21:12:03,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-14 21:12:03,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-14 21:12:03,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 21:12:03,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-14 21:12:03,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=141, Unknown=3, NotChecked=24, Total=210 [2022-02-14 21:12:03,609 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 12 states have internal predecessors, (23), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:12:09,828 WARN L228 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 83 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-14 21:12:11,836 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_#NULL.base| |c_old(#NULL.base)|) (<= c_main_~x~0 (* (div c_main_~x~0 4294967296) 4294967296)) (forall ((aux_mod_v_main_~x~0_17_31 Int)) (or (<= aux_mod_v_main_~x~0_17_31 0) (let ((.cse0 (< 0 (mod c_main_~y~0 4294967296)))) (and (or .cse0 (forall ((aux_div_v_main_~x~0_17_31 Int)) (not (= (+ aux_mod_v_main_~x~0_17_31 (* aux_div_v_main_~x~0_17_31 4294967296)) c_main_~x~0)))) (or (not .cse0) (and (forall ((aux_div_v_main_~x~0_17_31 Int) (aux_mod_v_main_~x~0_18_70 Int) (aux_div_v_main_~x~0_18_70 Int)) (let ((.cse1 (+ aux_mod_v_main_~x~0_18_70 (* aux_div_v_main_~x~0_18_70 4294967296)))) (or (exists ((v_it_3 Int)) (and (not (< 0 (mod (+ (* v_it_3 4294967295) c_main_~y~0) 4294967296))) (<= 1 v_it_3) (<= (+ aux_mod_v_main_~x~0_18_70 (* aux_div_v_main_~x~0_18_70 4294967296) v_it_3 1) (+ (* 4294967296 c_main_~x~0) c_main_~y~0)))) (exists ((v_it_3 Int)) (and (not (< 0 (mod (+ aux_mod_v_main_~x~0_18_70 (* v_it_3 4294967295)) 4294967296))) (<= (+ aux_mod_v_main_~x~0_17_31 v_it_3 (* aux_div_v_main_~x~0_17_31 4294967296) (* 4294967295 c_main_~x~0) c_main_~y~0 1) (+ aux_mod_v_main_~x~0_18_70 (* aux_div_v_main_~x~0_18_70 4294967296))) (<= 1 v_it_3))) (<= .cse1 (+ aux_mod_v_main_~x~0_17_31 (* aux_div_v_main_~x~0_17_31 4294967296) (* 4294967295 c_main_~x~0) c_main_~y~0)) (<= aux_mod_v_main_~x~0_18_70 0) (<= (+ (* 4294967296 c_main_~x~0) c_main_~y~0) .cse1) (<= 4294967296 aux_mod_v_main_~x~0_18_70)))) (or (forall ((aux_div_v_main_~x~0_17_31 Int)) (or (exists ((v_it_3 Int)) (and (not (< 0 (mod (+ (* v_it_3 4294967295) c_main_~y~0) 4294967296))) (<= 1 v_it_3) (<= (+ aux_mod_v_main_~x~0_17_31 v_it_3 (* aux_div_v_main_~x~0_17_31 4294967296) 1) c_main_~x~0))) (not (< (+ aux_mod_v_main_~x~0_17_31 (* aux_div_v_main_~x~0_17_31 4294967296)) c_main_~x~0)))) (< 0 (mod (+ aux_mod_v_main_~x~0_17_31 (* 4294967295 c_main_~x~0) c_main_~y~0) 4294967296))))))) (<= 4294967296 aux_mod_v_main_~x~0_17_31))) (= |c_#NULL.offset| |c_old(#NULL.offset)|)) is different from false [2022-02-14 21:12:11,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 21:12:11,888 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2022-02-14 21:12:11,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-14 21:12:11,888 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 12 states have internal predecessors, (23), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-02-14 21:12:11,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 21:12:11,889 INFO L225 Difference]: With dead ends: 32 [2022-02-14 21:12:11,890 INFO L226 Difference]: Without dead ends: 25 [2022-02-14 21:12:11,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=99, Invalid=325, Unknown=4, NotChecked=78, Total=506 [2022-02-14 21:12:11,892 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 20 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-14 21:12:11,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 75 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 77 Invalid, 0 Unknown, 42 Unchecked, 0.0s Time] [2022-02-14 21:12:11,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-02-14 21:12:11,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2022-02-14 21:12:11,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:12:11,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2022-02-14 21:12:11,909 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 16 [2022-02-14 21:12:11,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 21:12:11,909 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-02-14 21:12:11,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 12 states have internal predecessors, (23), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:12:11,910 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-02-14 21:12:11,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-02-14 21:12:11,910 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 21:12:11,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 21:12:11,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-14 21:12:12,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 21:12:12,111 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 21:12:12,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 21:12:12,112 INFO L85 PathProgramCache]: Analyzing trace with hash 374350110, now seen corresponding path program 1 times [2022-02-14 21:12:12,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 21:12:12,112 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715588384] [2022-02-14 21:12:12,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:12:12,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 21:12:12,116 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_2.0))) (+ main_~z~0_7 .cse0 (* (- 4294967296) (div (+ main_~z~0_7 .cse0) 4294967296)))) 0)) [2022-02-14 21:12:12,117 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_3.1))) (+ main_~y~0_5 .cse0 (* (- 4294967296) (div (+ main_~y~0_5 .cse0) 4294967296)))) 0)) [2022-02-14 21:12:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:12:12,132 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_2.3))) (+ main_~z~0_7 .cse0 (* (- 4294967296) (div (+ main_~z~0_7 .cse0) 4294967296)))) 0)) [2022-02-14 21:12:12,137 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_3.4))) (+ main_~y~0_5 .cse0 (* (- 4294967296) (div (+ main_~y~0_5 .cse0) 4294967296)))) 0)) [2022-02-14 21:12:12,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 21:12:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:12:12,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-14 21:12:12,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 21:12:12,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715588384] [2022-02-14 21:12:12,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715588384] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-14 21:12:12,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577503816] [2022-02-14 21:12:12,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:12:12,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 21:12:12,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 21:12:12,204 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) [2022-02-14 21:12:12,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process