/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-de20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 18:34:21,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 18:34:21,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 18:34:22,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-02 18:34:22,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-02 18:34:22,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-02 18:34:22,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-02 18:34:22,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-02 18:34:22,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-02 18:34:22,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-02 18:34:22,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-02 18:34:22,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-02 18:34:22,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 18:34:22,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 18:34:22,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 18:34:22,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 18:34:22,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 18:34:22,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 18:34:22,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 18:34:22,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 18:34:22,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 18:34:22,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 18:34:22,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 18:34:22,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 18:34:22,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 18:34:22,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 18:34:22,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 18:34:22,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 18:34:22,132 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-02 18:34:22,158 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 18:34:22,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 18:34:22,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 18:34:22,163 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 18:34:22,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 18:34:22,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 18:34:22,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 18:34:22,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 18:34:22,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 18:34:22,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 18:34:22,165 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 18:34:22,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 18:34:22,166 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 18:34:22,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 18:34:22,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 18:34:22,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 18:34:22,166 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-02 18:34:22,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 18:34:22,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 18:34:22,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 18:34:22,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 18:34:22,169 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-02 18:34:22,169 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 18:34:22,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 18:34:22,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 18:34:22,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 18:34:22,579 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 18:34:22,580 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 18:34:22,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/in-de20.c [2021-05-02 18:34:22,644 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566ab9126/4c801a91427a4a0e8db69ce3955f5976/FLAGa00e15f4a [2021-05-02 18:34:23,189 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 18:34:23,190 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de20.c [2021-05-02 18:34:23,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566ab9126/4c801a91427a4a0e8db69ce3955f5976/FLAGa00e15f4a [2021-05-02 18:34:23,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566ab9126/4c801a91427a4a0e8db69ce3955f5976 [2021-05-02 18:34:23,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 18:34:23,574 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-02 18:34:23,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 18:34:23,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 18:34:23,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 18:34:23,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 06:34:23" (1/1) ... [2021-05-02 18:34:23,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f5b06af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:34:23, skipping insertion in model container [2021-05-02 18:34:23,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 06:34:23" (1/1) ... [2021-05-02 18:34:23,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 18:34:23,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 18:34:23,803 WARN L224 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-de20.c[368,381] [2021-05-02 18:34:23,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 18:34:23,842 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 18:34:23,856 WARN L224 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-de20.c[368,381] [2021-05-02 18:34:23,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 18:34:23,877 INFO L208 MainTranslator]: Completed translation [2021-05-02 18:34:23,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:34:23 WrapperNode [2021-05-02 18:34:23,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 18:34:23,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 18:34:23,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 18:34:23,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 18:34:23,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:34:23" (1/1) ... [2021-05-02 18:34:23,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:34:23" (1/1) ... [2021-05-02 18:34:23,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:34:23" (1/1) ... [2021-05-02 18:34:23,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:34:23" (1/1) ... [2021-05-02 18:34:23,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:34:23" (1/1) ... [2021-05-02 18:34:23,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:34:23" (1/1) ... [2021-05-02 18:34:23,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:34:23" (1/1) ... [2021-05-02 18:34:23,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 18:34:23,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 18:34:23,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 18:34:23,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 18:34:23,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:34:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 18:34:24,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 18:34:24,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 18:34:24,037 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 18:34:24,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-02 18:34:24,037 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 18:34:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 18:34:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 18:34:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 18:34:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 18:34:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-05-02 18:34:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 18:34:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 18:34:24,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 18:34:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 18:34:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 18:34:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 18:34:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 18:34:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 18:34:24,335 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 18:34:24,336 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-05-02 18:34:24,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 06:34:24 BoogieIcfgContainer [2021-05-02 18:34:24,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 18:34:24,338 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-02 18:34:24,339 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-02 18:34:24,340 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-02 18:34:24,355 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 06:34:24" (1/1) ... [2021-05-02 18:34:24,458 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 (mod v_main_~x~0_6 4294967296)) InVars {main_~x~0=v_main_~x~0_6} OutVars{main_~x~0=v_main_~x~0_6} AuxVars[] AssignedVars[] [2021-05-02 18:34:24,502 WARN L240 tifierPushTermWalker]: treesize reduction 6, result has 92.0 percent of original size [2021-05-02 18:34:24,775 WARN L240 tifierPushTermWalker]: treesize reduction 14, result has 65.0 percent of original size [2021-05-02 18:34:24,782 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:34:24,808 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-02 18:34:24,811 WARN L245 tifierPushTermWalker]: treesize reduction 14, result has 65.0 percent of original size 26 [2021-05-02 18:34:24,816 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:34:24,825 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:34:24,830 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:34:24,854 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-02 18:34:24,857 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-02 18:34:24,860 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:34:24,912 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-05-02 18:34:24,915 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-02 18:34:24,917 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:34:24,930 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:34:24,938 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:34:24,960 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-02 18:34:24,961 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-02 18:34:24,964 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:34:25,016 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-05-02 18:34:25,021 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-05-02 18:34:25,024 WARN L240 tifierPushTermWalker]: treesize reduction 14, result has 75.4 percent of original size [2021-05-02 18:34:25,078 WARN L245 tifierPushTermWalker]: treesize reduction 14, result has 75.4 percent of original size 43 [2021-05-02 18:34:25,132 WARN L245 tifierPushTermWalker]: treesize reduction 6, result has 92.0 percent of original size 69 [2021-05-02 18:34:25,231 INFO L1112 elerationTransformer]: Accelerated Formula: (and (= (+ v_main_~x~0_5 1) v_main_~x~0_6) (< 0 (mod v_main_~x~0_6 4294967296)) (= v_main_~y~0_2 (+ v_main_~y~0_3 1))) InVars {main_~x~0=v_main_~x~0_6, main_~y~0=v_main_~y~0_3} OutVars{main_~x~0=v_main_~x~0_5, main_~y~0=v_main_~y~0_2, main_#t~post8=|v_main_#t~post8_1|, main_#t~post9=|v_main_#t~post9_1|} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_#t~post8, main_#t~post9] with Formula: (let ((.cse0 (mod v_main_~x~0_6 4294967296))) (or (and (= v_main_~y~0_2 (+ v_itFin_1 v_main_~y~0_3)) (< 0 v_itFin_1) (< 0 .cse0) (forall ((aux_div_aux_mod_aux_mod_aux_mod_v_it_1_56_95_93_56 Int) (aux_div_aux_mod_aux_mod_v_it_1_56_95_93 Int) (aux_div_v_it_1_56 Int)) (let ((.cse1 (* 4294967295 aux_div_aux_mod_aux_mod_aux_mod_v_it_1_56_95_93_56))) (let ((.cse3 (+ v_main_~x~0_6 .cse1 (* 4294967295 aux_div_aux_mod_aux_mod_v_it_1_56_95_93))) (.cse2 (* 4294967296 aux_div_v_it_1_56))) (or (<= 4294967295 .cse1) (< .cse2 .cse3) (< .cse1 0) (< .cse3 .cse2) (<= v_itFin_1 (+ aux_div_aux_mod_aux_mod_aux_mod_v_it_1_56_95_93_56 aux_div_aux_mod_aux_mod_v_it_1_56_95_93)) (< aux_div_aux_mod_aux_mod_v_it_1_56_95_93 1))))) (= v_main_~x~0_6 (+ v_itFin_1 v_main_~x~0_5)) (<= (mod (+ (* v_itFin_1 4294967295) v_main_~x~0_6) 4294967296) 0)) (and (= |v_main_#t~post9_3| |v_main_#t~post9_1|) (= v_itFin_1 0) (= |v_main_#t~post8_3| |v_main_#t~post8_1|) (= v_main_~x~0_5 v_main_~x~0_6) (<= .cse0 0) (= v_main_~y~0_3 v_main_~y~0_2)))) InVars {main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_6, main_#t~post8=|v_main_#t~post8_3|, main_#t~post9=|v_main_#t~post9_3|} OutVars{main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_5, main_#t~post8=|v_main_#t~post8_1|, main_#t~post9=|v_main_#t~post9_1|} AuxVars[v_itFin_1] AssignedVars[main_~x~0, main_~y~0, main_#t~post8, main_#t~post9] [2021-05-02 18:34:25,255 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 (mod v_main_~z~0_4 4294967296)) InVars {main_~z~0=v_main_~z~0_4} OutVars{main_~z~0=v_main_~z~0_4} AuxVars[] AssignedVars[] [2021-05-02 18:34:25,274 WARN L240 tifierPushTermWalker]: treesize reduction 6, result has 92.0 percent of original size [2021-05-02 18:34:25,416 WARN L245 tifierPushTermWalker]: treesize reduction 6, result has 92.0 percent of original size 69 [2021-05-02 18:34:25,480 INFO L1112 elerationTransformer]: Accelerated Formula: (and (= (+ v_main_~z~0_3 1) v_main_~z~0_4) (= v_main_~x~0_2 (+ v_main_~x~0_3 1)) (< 0 (mod v_main_~z~0_4 4294967296))) InVars {main_~x~0=v_main_~x~0_3, main_~z~0=v_main_~z~0_4} OutVars{main_#t~post10=|v_main_#t~post10_1|, main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_3, main_#t~post11=|v_main_#t~post11_1|} AuxVars[] AssignedVars[main_#t~post10, main_~x~0, main_~z~0, main_#t~post11] with Formula: (let ((.cse0 (mod v_main_~z~0_4 4294967296))) (or (and (< (div (+ (* v_itFin_2 (- 1)) (* v_main_~z~0_4 (- 4294967295))) (- 4294967296)) (+ (div (* v_main_~z~0_4 4294967295) 4294967296) 2)) (< 0 v_itFin_2) (<= (mod (+ v_main_~z~0_4 (* v_itFin_2 4294967295)) 4294967296) 0) (< 0 .cse0) (= (+ v_itFin_2 v_main_~z~0_3) v_main_~z~0_4) (= v_main_~x~0_2 (+ v_itFin_2 v_main_~x~0_3))) (and (= v_main_~x~0_3 v_main_~x~0_2) (= v_main_~z~0_3 v_main_~z~0_4) (= |v_main_#t~post11_3| |v_main_#t~post11_1|) (= |v_main_#t~post10_3| |v_main_#t~post10_1|) (= v_itFin_2 0) (<= .cse0 0)))) InVars {main_#t~post10=|v_main_#t~post10_3|, main_~x~0=v_main_~x~0_3, main_#t~post11=|v_main_#t~post11_3|, main_~z~0=v_main_~z~0_4} OutVars{main_#t~post10=|v_main_#t~post10_1|, main_~x~0=v_main_~x~0_2, main_#t~post11=|v_main_#t~post11_1|, main_~z~0=v_main_~z~0_3} AuxVars[v_itFin_2] AssignedVars[main_#t~post10, main_~x~0, main_~z~0, main_#t~post11] [2021-05-02 18:34:25,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 06:34:25 BasicIcfg [2021-05-02 18:34:25,487 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-02 18:34:25,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 18:34:25,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 18:34:25,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 18:34:25,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 06:34:23" (1/4) ... [2021-05-02 18:34:25,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c272b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 06:34:25, skipping insertion in model container [2021-05-02 18:34:25,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:34:23" (2/4) ... [2021-05-02 18:34:25,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c272b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 06:34:25, skipping insertion in model container [2021-05-02 18:34:25,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 06:34:24" (3/4) ... [2021-05-02 18:34:25,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c272b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 06:34:25, skipping insertion in model container [2021-05-02 18:34:25,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 06:34:25" (4/4) ... [2021-05-02 18:34:25,502 INFO L111 eAbstractionObserver]: Analyzing ICFG in-de20.cJordan [2021-05-02 18:34:25,508 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-02 18:34:25,511 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 18:34:25,530 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 18:34:25,547 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 18:34:25,547 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-02 18:34:25,548 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-02 18:34:25,548 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 18:34:25,548 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 18:34:25,548 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 18:34:25,548 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 18:34:25,548 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 18:34:25,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 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) [2021-05-02 18:34:25,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-02 18:34:25,569 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 18:34:25,570 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 18:34:25,570 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 18:34:25,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 18:34:25,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1032895658, now seen corresponding path program 1 times [2021-05-02 18:34:25,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 18:34:25,587 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494980146] [2021-05-02 18:34:25,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 18:34:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:34:25,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 18:34:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:34:25,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 18:34:25,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 18:34:25,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494980146] [2021-05-02 18:34:25,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494980146] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 18:34:25,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 18:34:25,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-02 18:34:25,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669361354] [2021-05-02 18:34:25,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-02 18:34:25,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 18:34:25,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-02 18:34:25,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 18:34:25,862 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 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 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-05-02 18:34:25,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 18:34:25,919 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-05-02 18:34:25,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 18:34:25,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 13 [2021-05-02 18:34:25,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 18:34:25,928 INFO L225 Difference]: With dead ends: 21 [2021-05-02 18:34:25,929 INFO L226 Difference]: Without dead ends: 14 [2021-05-02 18:34:25,930 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 18:34:25,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-05-02 18:34:25,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-05-02 18:34:25,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 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) [2021-05-02 18:34:25,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-05-02 18:34:25,961 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 13 [2021-05-02 18:34:25,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 18:34:25,963 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-05-02 18:34:25,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-05-02 18:34:25,964 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-05-02 18:34:25,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-05-02 18:34:25,966 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 18:34:25,967 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 18:34:25,968 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 18:34:25,968 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 18:34:25,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 18:34:25,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1920399339, now seen corresponding path program 1 times [2021-05-02 18:34:25,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 18:34:25,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039561284] [2021-05-02 18:34:25,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 18:34:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:34:26,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 18:34:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:34:26,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 18:34:26,249 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 18:34:26,249 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039561284] [2021-05-02 18:34:26,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039561284] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 18:34:26,250 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 18:34:26,250 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-02 18:34:26,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510752389] [2021-05-02 18:34:26,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-02 18:34:26,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 18:34:26,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-02 18:34:26,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-02 18:34:26,259 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-05-02 18:34:26,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 18:34:26,501 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2021-05-02 18:34:26,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-02 18:34:26,502 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 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 13 [2021-05-02 18:34:26,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 18:34:26,503 INFO L225 Difference]: With dead ends: 20 [2021-05-02 18:34:26,503 INFO L226 Difference]: Without dead ends: 17 [2021-05-02 18:34:26,504 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 190.3ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-05-02 18:34:26,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-05-02 18:34:26,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-05-02 18:34:26,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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) [2021-05-02 18:34:26,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-05-02 18:34:26,509 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 13 [2021-05-02 18:34:26,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 18:34:26,509 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-05-02 18:34:26,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-05-02 18:34:26,510 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-05-02 18:34:26,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-02 18:34:26,510 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 18:34:26,511 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 18:34:26,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-02 18:34:26,511 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 18:34:26,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 18:34:26,512 INFO L82 PathProgramCache]: Analyzing trace with hash -570442020, now seen corresponding path program 1 times [2021-05-02 18:34:26,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 18:34:26,512 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522119107] [2021-05-02 18:34:26,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 18:34:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:34:26,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 18:34:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:34:26,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 18:34:26,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 18:34:26,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522119107] [2021-05-02 18:34:26,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522119107] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 18:34:26,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548246479] [2021-05-02 18:34:26,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 18:34:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:34:26,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 15 conjunts are in the unsatisfiable core [2021-05-02 18:34:26,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 18:34:26,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 18:34:26,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548246479] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 18:34:26,977 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 18:34:26,977 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-05-02 18:34:26,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369457553] [2021-05-02 18:34:26,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-02 18:34:26,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 18:34:26,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-02 18:34:26,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-05-02 18:34:26,979 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 8 states have internal predecessors, (15), 3 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) [2021-05-02 18:34:27,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 18:34:27,965 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2021-05-02 18:34:27,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-02 18:34:27,966 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 8 states have internal predecessors, (15), 3 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 14 [2021-05-02 18:34:27,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 18:34:27,967 INFO L225 Difference]: With dead ends: 21 [2021-05-02 18:34:27,967 INFO L226 Difference]: Without dead ends: 15 [2021-05-02 18:34:27,968 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 279.2ms TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-05-02 18:34:27,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-05-02 18:34:27,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-05-02 18:34:27,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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) [2021-05-02 18:34:27,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-05-02 18:34:27,971 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 14 [2021-05-02 18:34:27,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 18:34:27,972 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-05-02 18:34:27,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 8 states have internal predecessors, (15), 3 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) [2021-05-02 18:34:27,972 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-05-02 18:34:27,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-05-02 18:34:27,973 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 18:34:27,973 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 18:34:28,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-05-02 18:34:28,174 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 18:34:28,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 18:34:28,175 INFO L82 PathProgramCache]: Analyzing trace with hash -688526500, now seen corresponding path program 1 times [2021-05-02 18:34:28,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 18:34:28,176 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666190384] [2021-05-02 18:34:28,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 18:34:28,189 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967295) .aux_div_aux_mod_aux_mod_aux_mod_v_it_1_56_95_93_56.0) 4294967295) 0) [2021-05-02 18:34:28,189 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ main_~x~0_5 (* 4294967295 .aux_div_aux_mod_aux_mod_aux_mod_v_it_1_56_95_93_56.0) (* 4294967295 .aux_div_aux_mod_aux_mod_v_it_1_56_95_93.1) (* (- 4294967296) .aux_div_v_it_1_56.2)) 0)) [2021-05-02 18:34:28,189 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (* (- 4294967295) .aux_div_aux_mod_aux_mod_aux_mod_v_it_1_56_95_93_56.0) 0)) [2021-05-02 18:34:28,189 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_1_56.2) (- main_~x~0_5) (* (- 4294967295) .aux_div_aux_mod_aux_mod_aux_mod_v_it_1_56_95_93_56.0) (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_1_56_95_93.1)) 0)) [2021-05-02 18:34:28,189 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (- v_itFin_1_fresh_1) .aux_div_aux_mod_aux_mod_aux_mod_v_it_1_56_95_93_56.0 .aux_div_aux_mod_aux_mod_v_it_1_56_95_93.1 1) 0)) [2021-05-02 18:34:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:34:28,266 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967295) .aux_div_aux_mod_aux_mod_aux_mod_v_it_1_56_95_93_56.4) 4294967295) 0) [2021-05-02 18:34:28,274 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ main_~x~0_5 (* 4294967295 .aux_div_aux_mod_aux_mod_aux_mod_v_it_1_56_95_93_56.4) (* 4294967295 .aux_div_aux_mod_aux_mod_v_it_1_56_95_93.5) (* (- 4294967296) .aux_div_v_it_1_56.6)) 0)) [2021-05-02 18:34:28,275 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (* (- 4294967295) .aux_div_aux_mod_aux_mod_aux_mod_v_it_1_56_95_93_56.4) 0)) [2021-05-02 18:34:28,275 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_1_56.6) (- main_~x~0_5) (* (- 4294967295) .aux_div_aux_mod_aux_mod_aux_mod_v_it_1_56_95_93_56.4) (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_1_56_95_93.5)) 0)) [2021-05-02 18:34:28,275 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (- v_itFin_1_fresh_1) .aux_div_aux_mod_aux_mod_aux_mod_v_it_1_56_95_93_56.4 .aux_div_aux_mod_aux_mod_v_it_1_56_95_93.5 1) 0)) [2021-05-02 18:34:28,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 18:34:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:34:28,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 18:34:28,645 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 18:34:28,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666190384] [2021-05-02 18:34:28,645 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666190384] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 18:34:28,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762239205] [2021-05-02 18:34:28,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 18:34:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:34:28,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjunts are in the unsatisfiable core [2021-05-02 18:34:28,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 18:34:28,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:28,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:28,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:28,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:28,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:28,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:28,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:28,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:29,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:29,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:29,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:29,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:29,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:29,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:29,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:29,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:29,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:29,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:29,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:29,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:29,607 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:29,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:29,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:31,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:31,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:31,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:31,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:31,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:31,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:31,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:31,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:31,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:31,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:31,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:31,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:31,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:31,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:31,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:31,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:34:31,616 WARN L159 QuantifierPusher]: Ignoring assumption.