/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-de31.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-14 21:10:55,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-14 21:10:55,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-14 21:10:55,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-14 21:10:55,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-14 21:10:55,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-14 21:10:55,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-14 21:10:55,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-14 21:10:55,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-14 21:10:55,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-14 21:10:55,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-14 21:10:55,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-14 21:10:55,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-14 21:10:55,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-14 21:10:55,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-14 21:10:55,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-14 21:10:55,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-14 21:10:55,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-14 21:10:55,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-14 21:10:55,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-14 21:10:55,210 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-14 21:10:55,219 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-14 21:10:55,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-14 21:10:55,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-14 21:10:55,221 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-14 21:10:55,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-14 21:10:55,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-14 21:10:55,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-14 21:10:55,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-14 21:10:55,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-14 21:10:55,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-14 21:10:55,222 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-14 21:10:55,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-14 21:10:55,222 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-14 21:10:55,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-14 21:10:55,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-14 21:10:55,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-14 21:10:55,223 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-14 21:10:55,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-14 21:10:55,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-14 21:10:55,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-14 21:10:55,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-14 21:10:55,224 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-14 21:10:55,224 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-14 21:10:55,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-14 21:10:55,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-14 21:10:55,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-14 21:10:55,413 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-14 21:10:55,413 INFO L275 PluginConnector]: CDTParser initialized [2022-02-14 21:10:55,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/in-de31.c [2022-02-14 21:10:55,448 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a157252c2/d91cea8eba854ce38d09afd2b1313e16/FLAGa99af347f [2022-02-14 21:10:55,796 INFO L306 CDTParser]: Found 1 translation units. [2022-02-14 21:10:55,796 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de31.c [2022-02-14 21:10:55,803 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a157252c2/d91cea8eba854ce38d09afd2b1313e16/FLAGa99af347f [2022-02-14 21:10:55,813 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a157252c2/d91cea8eba854ce38d09afd2b1313e16 [2022-02-14 21:10:55,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-14 21:10:55,815 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-14 21:10:55,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-14 21:10:55,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-14 21:10:55,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-14 21:10:55,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 09:10:55" (1/1) ... [2022-02-14 21:10:55,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e045f95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:10:55, skipping insertion in model container [2022-02-14 21:10:55,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 09:10:55" (1/1) ... [2022-02-14 21:10:55,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-14 21:10:55,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-14 21:10:55,949 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-de31.c[368,381] [2022-02-14 21:10:55,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-14 21:10:55,964 INFO L203 MainTranslator]: Completed pre-run [2022-02-14 21:10:55,971 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-de31.c[368,381] [2022-02-14 21:10:55,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-14 21:10:55,980 INFO L208 MainTranslator]: Completed translation [2022-02-14 21:10:55,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:10:55 WrapperNode [2022-02-14 21:10:55,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-14 21:10:55,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-14 21:10:55,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-14 21:10:55,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-14 21:10:55,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:10:55" (1/1) ... [2022-02-14 21:10:55,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:10:55" (1/1) ... [2022-02-14 21:10:55,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:10:55" (1/1) ... [2022-02-14 21:10:55,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:10:55" (1/1) ... [2022-02-14 21:10:55,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:10:55" (1/1) ... [2022-02-14 21:10:55,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:10:55" (1/1) ... [2022-02-14 21:10:55,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:10:55" (1/1) ... [2022-02-14 21:10:55,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-14 21:10:55,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-14 21:10:55,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-14 21:10:55,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-14 21:10:56,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:10:55" (1/1) ... [2022-02-14 21:10:56,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-14 21:10:56,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 21:10:56,020 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 21:10:56,022 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 21:10:56,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-14 21:10:56,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-14 21:10:56,046 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-14 21:10:56,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-14 21:10:56,046 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-14 21:10:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-14 21:10:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-14 21:10:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-14 21:10:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-14 21:10:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-02-14 21:10:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-14 21:10:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-14 21:10:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-14 21:10:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-14 21:10:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-14 21:10:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-14 21:10:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-14 21:10:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-14 21:10:56,087 INFO L234 CfgBuilder]: Building ICFG [2022-02-14 21:10:56,088 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-14 21:10:56,179 INFO L275 CfgBuilder]: Performing block encoding [2022-02-14 21:10:56,183 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-14 21:10:56,183 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-02-14 21:10:56,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 09:10:56 BoogieIcfgContainer [2022-02-14 21:10:56,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-14 21:10:56,184 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-14 21:10:56,185 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-14 21:10:56,187 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-14 21:10:56,189 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 09:10:56" (1/1) ... [2022-02-14 21:10:56,464 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 21:10:56,465 INFO L91 elerationTransformer]: Accelerated Formula: (and (= (+ v_main_~x~0_3 1) v_main_~x~0_4) (= v_main_~y~0_5 (+ v_main_~y~0_6 1)) (< 0 (mod v_main_~x~0_4 4294967296))) InVars {main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_6} OutVars{main_~x~0=v_main_~x~0_3, 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_4 4294967296))) (or (and (= |v_main_#t~post5_3| |v_main_#t~post5_1|) (= v_main_~x~0_4 v_main_~x~0_3) (= |v_main_#t~post6_3| |v_main_#t~post6_1|) (<= .cse0 0) (= v_main_~y~0_6 v_main_~y~0_5)) (and (forall ((v_it_1 Int)) (or (< 0 (mod (+ v_main_~x~0_4 (* 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) (< 0 .cse0) (= v_main_~x~0_3 (+ v_main_~x~0_4 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_4, 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_3, 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 21:10:56,749 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 21:10:56,749 INFO L91 elerationTransformer]: Accelerated Formula: (and (= v_main_~z~0_8 (+ v_main_~z~0_7 1)) (< 0 (mod v_main_~z~0_8 4294967296)) (= v_main_~x~0_5 (+ v_main_~x~0_6 1))) InVars {main_~x~0=v_main_~x~0_6, main_~z~0=v_main_~z~0_8} OutVars{main_~x~0=v_main_~x~0_5, main_~z~0=v_main_~z~0_7, 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_8 4294967296))) (or (and (<= .cse0 0) (= v_main_~z~0_8 v_main_~z~0_7) (= |v_main_#t~post7_3| |v_main_#t~post7_1|) (= v_main_~x~0_5 v_main_~x~0_6) (= |v_main_#t~post8_3| |v_main_#t~post8_1|)) (and (= v_main_~z~0_7 (+ v_main_~x~0_6 v_main_~z~0_8 (* (- 1) v_main_~x~0_5))) (< 0 .cse0) (forall ((v_it_2 Int)) (or (< 0 (mod (+ v_main_~z~0_8 (* v_it_2 4294967295)) 4294967296)) (not (<= 1 v_it_2)) (not (<= (+ v_main_~x~0_6 v_it_2 1) v_main_~x~0_5)))) (< v_main_~x~0_6 v_main_~x~0_5)))) InVars {main_~x~0=v_main_~x~0_6, main_#t~post8=|v_main_#t~post8_3|, main_~z~0=v_main_~z~0_8, main_#t~post7=|v_main_#t~post7_3|} OutVars{main_~x~0=v_main_~x~0_5, main_#t~post8=|v_main_#t~post8_1|, main_~z~0=v_main_~z~0_7, 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 21:10:56,824 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 21:10:56,824 INFO L91 elerationTransformer]: Accelerated Formula: (and (< 0 (mod v_main_~y~0_4 4294967296)) (= (+ v_main_~z~0_3 1) v_main_~z~0_2) (= v_main_~y~0_4 (+ v_main_~y~0_3 1))) InVars {main_~z~0=v_main_~z~0_3, main_~y~0=v_main_~y~0_4} OutVars{main_#t~post10=|v_main_#t~post10_1|, main_~z~0=v_main_~z~0_2, main_~y~0=v_main_~y~0_3, main_#t~post9=|v_main_#t~post9_1|} AuxVars[] AssignedVars[main_#t~post10, main_~z~0, main_~y~0, main_#t~post9] to Formula: (let ((.cse0 (mod v_main_~y~0_4 4294967296))) (or (and (= (+ (* (- 1) v_main_~y~0_3) v_main_~y~0_4 v_main_~z~0_3) v_main_~z~0_2) (< 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_~y~0_3 v_main_~y~0_4)) (and (= |v_main_#t~post10_3| |v_main_#t~post10_1|) (= v_main_~z~0_3 v_main_~z~0_2) (= v_main_~y~0_4 v_main_~y~0_3) (<= .cse0 0) (= |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_#t~post9=|v_main_#t~post9_3|, main_~z~0=v_main_~z~0_3} OutVars{main_~y~0=v_main_~y~0_3, main_#t~post10=|v_main_#t~post10_1|, main_#t~post9=|v_main_#t~post9_1|, main_~z~0=v_main_~z~0_2} AuxVars[] AssignedVars[main_#t~post10, main_~z~0, main_~y~0, main_#t~post9] [2022-02-14 21:10:56,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.02 09:10:56 BasicIcfg [2022-02-14 21:10:56,828 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-14 21:10:56,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-14 21:10:56,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-14 21:10:56,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-14 21:10:56,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 09:10:55" (1/4) ... [2022-02-14 21:10:56,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb9d7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 09:10:56, skipping insertion in model container [2022-02-14 21:10:56,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:10:55" (2/4) ... [2022-02-14 21:10:56,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb9d7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 09:10:56, skipping insertion in model container [2022-02-14 21:10:56,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 09:10:56" (3/4) ... [2022-02-14 21:10:56,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb9d7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 09:10:56, skipping insertion in model container [2022-02-14 21:10:56,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.02 09:10:56" (4/4) ... [2022-02-14 21:10:56,838 INFO L111 eAbstractionObserver]: Analyzing ICFG in-de31.cJordan [2022-02-14 21:10:56,841 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-14 21:10:56,841 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-14 21:10:56,875 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-14 21:10:56,883 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 21:10:56,883 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-14 21:10:56,894 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 21:10:56,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-02-14 21:10:56,900 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 21:10:56,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 21:10:56,901 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 21:10:56,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 21:10:56,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1909530012, now seen corresponding path program 1 times [2022-02-14 21:10:56,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 21:10:56,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952223688] [2022-02-14 21:10:56,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:10:56,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 21:10:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:10:57,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 21:10:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:10:57,029 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 21:10:57,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 21:10:57,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952223688] [2022-02-14 21:10:57,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952223688] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 21:10:57,030 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 21:10:57,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-14 21:10:57,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525484088] [2022-02-14 21:10:57,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 21:10:57,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-14 21:10:57,037 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 21:10:57,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-14 21:10:57,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-14 21:10:57,064 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 21:10:57,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 21:10:57,112 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2022-02-14 21:10:57,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-14 21:10:57,125 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 21:10:57,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 21:10:57,129 INFO L225 Difference]: With dead ends: 22 [2022-02-14 21:10:57,130 INFO L226 Difference]: Without dead ends: 15 [2022-02-14 21:10:57,131 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 21:10:57,133 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 21:10:57,133 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 21:10:57,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-02-14 21:10:57,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-02-14 21:10:57,153 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 21:10:57,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-02-14 21:10:57,154 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 14 [2022-02-14 21:10:57,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 21:10:57,155 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-02-14 21:10:57,155 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 21:10:57,155 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-02-14 21:10:57,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-02-14 21:10:57,156 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 21:10:57,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 21:10:57,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-14 21:10:57,156 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 21:10:57,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 21:10:57,158 INFO L85 PathProgramCache]: Analyzing trace with hash -137167005, now seen corresponding path program 1 times [2022-02-14 21:10:57,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 21:10:57,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552249288] [2022-02-14 21:10:57,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:10:57,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 21:10:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:10:57,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 21:10:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:10:57,359 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 21:10:57,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 21:10:57,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552249288] [2022-02-14 21:10:57,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552249288] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 21:10:57,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-14 21:10:57,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-14 21:10:57,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002351098] [2022-02-14 21:10:57,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 21:10:57,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-14 21:10:57,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 21:10:57,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-14 21:10:57,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-14 21:10:57,366 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 6 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 21:10:57,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 21:10:57,477 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2022-02-14 21:10:57,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-14 21:10:57,478 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 6 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 21:10:57,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 21:10:57,478 INFO L225 Difference]: With dead ends: 24 [2022-02-14 21:10:57,478 INFO L226 Difference]: Without dead ends: 21 [2022-02-14 21:10:57,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-02-14 21:10:57,481 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 18 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-14 21:10:57,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 40 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 3 Unchecked, 0.0s Time] [2022-02-14 21:10:57,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-02-14 21:10:57,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2022-02-14 21:10:57,485 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 21:10:57,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-02-14 21:10:57,487 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 14 [2022-02-14 21:10:57,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 21:10:57,488 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-02-14 21:10:57,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.25) internal successors, (10), 6 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 21:10:57,492 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-02-14 21:10:57,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-02-14 21:10:57,494 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 21:10:57,494 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 21:10:57,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-14 21:10:57,494 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 21:10:57,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 21:10:57,494 INFO L85 PathProgramCache]: Analyzing trace with hash 69510770, now seen corresponding path program 1 times [2022-02-14 21:10:57,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 21:10:57,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504598417] [2022-02-14 21:10:57,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:10:57,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 21:10:57,529 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 21:10:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:10:57,576 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_3.2))) (+ main_~y~0_5 .cse0 (* (- 4294967296) (div (+ main_~y~0_5 .cse0) 4294967296)))) 0)) [2022-02-14 21:10:57,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 21:10:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:10:57,671 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 21:10:57,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 21:10:57,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504598417] [2022-02-14 21:10:57,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504598417] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-14 21:10:57,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91364774] [2022-02-14 21:10:57,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:10:57,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 21:10:57,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 21:10:57,673 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-14 21:10:57,699 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 21:10:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:10:57,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-14 21:10:57,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-14 21:10:57,867 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 21:10:57,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-14 21:11:01,451 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 21:11:01,452 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91364774] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-14 21:11:01,452 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-14 21:11:01,452 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 17 [2022-02-14 21:11:01,452 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206564411] [2022-02-14 21:11:01,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-14 21:11:01,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-14 21:11:01,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 21:11:01,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-14 21:11:01,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=217, Unknown=3, NotChecked=0, Total=272 [2022-02-14 21:11:01,453 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 14 states have internal predecessors, (22), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:01,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 21:11:01,602 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2022-02-14 21:11:01,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-14 21:11:01,602 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 14 states have internal predecessors, (22), 4 states have call successors, (6), 4 states have call predecessors, (6), 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 21:11:01,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 21:11:01,603 INFO L225 Difference]: With dead ends: 25 [2022-02-14 21:11:01,603 INFO L226 Difference]: Without dead ends: 22 [2022-02-14 21:11:01,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 21 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=103, Invalid=400, Unknown=3, NotChecked=0, Total=506 [2022-02-14 21:11:01,604 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 24 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-14 21:11:01,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 57 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 65 Invalid, 0 Unknown, 27 Unchecked, 0.0s Time] [2022-02-14 21:11:01,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-02-14 21:11:01,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2022-02-14 21:11:01,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 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 21:11:01,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2022-02-14 21:11:01,606 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 15 [2022-02-14 21:11:01,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 21:11:01,606 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2022-02-14 21:11:01,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 14 states have internal predecessors, (22), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:01,607 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2022-02-14 21:11:01,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-02-14 21:11:01,607 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 21:11:01,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 21:11:01,624 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 21:11:01,818 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 21:11:01,819 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 21:11:01,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 21:11:01,819 INFO L85 PathProgramCache]: Analyzing trace with hash 842497847, now seen corresponding path program 1 times [2022-02-14 21:11:01,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 21:11:01,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513880287] [2022-02-14 21:11:01,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:11:01,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 21:11:01,824 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 21:11:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:01,846 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 21:11:01,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 21:11:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:01,960 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 21:11:01,960 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 21:11:01,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513880287] [2022-02-14 21:11:01,961 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513880287] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-14 21:11:01,961 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322407625] [2022-02-14 21:11:01,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:11:01,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 21:11:01,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 21:11:01,962 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 21:11:01,990 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 21:11:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:02,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-14 21:11:02,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-14 21:11:02,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-14 21:11:02,116 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-14 21:11:02,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322407625] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-14 21:11:02,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-14 21:11:02,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-02-14 21:11:02,116 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980536933] [2022-02-14 21:11:02,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-14 21:11:02,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-14 21:11:02,117 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 21:11:02,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-14 21:11:02,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-02-14 21:11:02,117 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 2 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 21:11:02,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 21:11:02,151 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2022-02-14 21:11:02,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-14 21:11:02,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 2 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 15 [2022-02-14 21:11:02,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 21:11:02,152 INFO L225 Difference]: With dead ends: 25 [2022-02-14 21:11:02,152 INFO L226 Difference]: Without dead ends: 22 [2022-02-14 21:11:02,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2022-02-14 21:11:02,153 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-14 21:11:02,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 57 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 3 Unchecked, 0.0s Time] [2022-02-14 21:11:02,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-02-14 21:11:02,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2022-02-14 21:11:02,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 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 21:11:02,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2022-02-14 21:11:02,156 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 15 [2022-02-14 21:11:02,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 21:11:02,156 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2022-02-14 21:11:02,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 2 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 21:11:02,156 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2022-02-14 21:11:02,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-02-14 21:11:02,156 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 21:11:02,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 21:11:02,175 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 21:11:02,372 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 21:11:02,373 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 21:11:02,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 21:11:02,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1476846263, now seen corresponding path program 1 times [2022-02-14 21:11:02,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 21:11:02,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902525024] [2022-02-14 21:11:02,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:11:02,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 21:11:02,379 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_1.0))) (+ main_~x~0_5 .cse0 (* (- 4294967296) (div (+ main_~x~0_5 .cse0) 4294967296)))) 0)) [2022-02-14 21:11:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:02,390 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_1.1))) (+ main_~x~0_5 .cse0 (* (- 4294967296) (div (+ main_~x~0_5 .cse0) 4294967296)))) 0)) [2022-02-14 21:11:02,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 21:11:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:02,570 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 21:11:02,571 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 21:11:02,571 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902525024] [2022-02-14 21:11:02,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902525024] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-14 21:11:02,571 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300888329] [2022-02-14 21:11:02,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:11:02,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 21:11:02,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 21:11:02,572 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 21:11:02,573 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 21:11:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:02,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-14 21:11:02,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-14 21:11:03,453 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 21:11:03,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-14 21:11:04,430 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 21:11:04,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300888329] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-14 21:11:04,431 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-14 21:11:04,431 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 19 [2022-02-14 21:11:04,431 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111757193] [2022-02-14 21:11:04,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-14 21:11:04,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-14 21:11:04,431 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 21:11:04,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-14 21:11:04,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2022-02-14 21:11:04,432 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 16 states have internal predecessors, (24), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:18,355 WARN L228 SmtUtils]: Spent 6.80s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-14 21:11:19,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 21:11:19,632 INFO L93 Difference]: Finished difference Result 36 states and 48 transitions. [2022-02-14 21:11:19,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-14 21:11:19,632 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 16 states have internal predecessors, (24), 3 states have call successors, (6), 4 states have call predecessors, (6), 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 21:11:19,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 21:11:19,633 INFO L225 Difference]: With dead ends: 36 [2022-02-14 21:11:19,633 INFO L226 Difference]: Without dead ends: 32 [2022-02-14 21:11:19,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 20 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=172, Invalid=637, Unknown=3, NotChecked=0, Total=812 [2022-02-14 21:11:19,633 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 38 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-14 21:11:19,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 85 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 96 Invalid, 0 Unknown, 68 Unchecked, 0.1s Time] [2022-02-14 21:11:19,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-02-14 21:11:19,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2022-02-14 21:11:19,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 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 21:11:19,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2022-02-14 21:11:19,636 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 15 [2022-02-14 21:11:19,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 21:11:19,636 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2022-02-14 21:11:19,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 16 states have internal predecessors, (24), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:19,636 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2022-02-14 21:11:19,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-02-14 21:11:19,637 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 21:11:19,637 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 21:11:19,655 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 21:11:19,837 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 21:11:19,837 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 21:11:19,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 21:11:19,838 INFO L85 PathProgramCache]: Analyzing trace with hash -2113412797, now seen corresponding path program 2 times [2022-02-14 21:11:19,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 21:11:19,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673225938] [2022-02-14 21:11:19,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:11:19,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 21:11:19,842 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 21:11:19,843 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 21:11:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:19,874 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 21:11:19,877 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 21:11:20,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 21:11:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:20,008 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 21:11:20,008 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 21:11:20,008 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673225938] [2022-02-14 21:11:20,008 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673225938] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-14 21:11:20,008 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799434569] [2022-02-14 21:11:20,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-14 21:11:20,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 21:11:20,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 21:11:20,009 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 21:11:20,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-14 21:11:20,052 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-14 21:11:20,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-14 21:11:20,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-14 21:11:20,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-14 21:11:20,151 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 21:11:20,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-14 21:11:25,775 WARN L838 $PredicateComparison]: unable to prove that (forall ((aux_mod_v_main_~z~0_18_31 Int)) (or (= aux_mod_v_main_~z~0_18_31 (mod c_main_~n~0 4294967296)) (let ((.cse1 (< 0 (mod c_main_~y~0 4294967296)))) (and (or (forall ((v_main_~z~0_19 Int)) (or (exists ((v_it_3 Int)) (and (not (< 0 (mod (+ (* v_it_3 4294967295) c_main_~y~0) 4294967296))) (<= 1 v_it_3) (<= (+ v_it_3 c_main_~z~0 1) v_main_~z~0_19))) (let ((.cse0 (< 0 (mod (+ (* v_main_~z~0_19 4294967295) c_main_~y~0 c_main_~z~0) 4294967296)))) (and (or (forall ((aux_div_v_main_~z~0_18_31 Int)) (not (= v_main_~z~0_19 (+ (* 4294967296 aux_div_v_main_~z~0_18_31) aux_mod_v_main_~z~0_18_31)))) .cse0) (or (forall ((aux_div_v_main_~z~0_18_31 Int)) (or (not (< v_main_~z~0_19 (+ (* 4294967296 aux_div_v_main_~z~0_18_31) aux_mod_v_main_~z~0_18_31))) (exists ((v_it_3 Int)) (and (not (< 0 (mod (+ (* v_it_3 4294967295) (* v_main_~z~0_19 4294967295) c_main_~y~0 c_main_~z~0) 4294967296))) (<= 1 v_it_3) (<= (+ v_main_~z~0_19 v_it_3 1) (+ (* 4294967296 aux_div_v_main_~z~0_18_31) aux_mod_v_main_~z~0_18_31)))))) (not .cse0)))) (not (< c_main_~z~0 v_main_~z~0_19)))) (not .cse1)) (or (forall ((aux_div_v_main_~z~0_18_31 Int)) (not (= (+ (* 4294967296 aux_div_v_main_~z~0_18_31) aux_mod_v_main_~z~0_18_31) c_main_~z~0))) .cse1))) (> 0 aux_mod_v_main_~z~0_18_31) (>= aux_mod_v_main_~z~0_18_31 4294967296))) is different from false [2022-02-14 21:11:35,810 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 21:11:35,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799434569] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-14 21:11:35,810 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-14 21:11:35,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 10] total 18 [2022-02-14 21:11:35,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159965685] [2022-02-14 21:11:35,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-14 21:11:35,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-14 21:11:35,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-14 21:11:35,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-14 21:11:35,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=218, Unknown=5, NotChecked=30, Total=306 [2022-02-14 21:11:35,812 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 15 states have internal predecessors, (24), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:36,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-14 21:11:36,028 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions. [2022-02-14 21:11:36,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-14 21:11:36,029 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 15 states have internal predecessors, (24), 4 states have call successors, (6), 4 states have call predecessors, (6), 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 21:11:36,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-14 21:11:36,029 INFO L225 Difference]: With dead ends: 32 [2022-02-14 21:11:36,029 INFO L226 Difference]: Without dead ends: 26 [2022-02-14 21:11:36,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=108, Invalid=397, Unknown=5, NotChecked=42, Total=552 [2022-02-14 21:11:36,030 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 27 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-14 21:11:36,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 60 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 65 Invalid, 0 Unknown, 42 Unchecked, 0.0s Time] [2022-02-14 21:11:36,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-02-14 21:11:36,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-02-14 21:11:36,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 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 21:11:36,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2022-02-14 21:11:36,032 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 16 [2022-02-14 21:11:36,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-14 21:11:36,032 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2022-02-14 21:11:36,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 15 states have internal predecessors, (24), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-14 21:11:36,033 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2022-02-14 21:11:36,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-02-14 21:11:36,033 INFO L506 BasicCegarLoop]: Found error trace [2022-02-14 21:11:36,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-14 21:11:36,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-14 21:11:36,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 21:11:36,243 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-14 21:11:36,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-14 21:11:36,244 INFO L85 PathProgramCache]: Analyzing trace with hash 374350110, now seen corresponding path program 1 times [2022-02-14 21:11:36,244 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-14 21:11:36,244 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37106095] [2022-02-14 21:11:36,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:11:36,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-14 21:11:36,248 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 21:11:36,249 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 21:11:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:36,296 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 21:11:36,300 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 21:11:36,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-14 21:11:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-14 21:11:36,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-14 21:11:36,419 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-14 21:11:36,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37106095] [2022-02-14 21:11:36,419 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37106095] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-14 21:11:36,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291181164] [2022-02-14 21:11:36,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-14 21:11:36,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-14 21:11:36,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-14 21:11:36,422 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-14 21:11:36,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process