/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-de52.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 18:37:31,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 18:37:31,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 18:37:31,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-02 18:37:31,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-02 18:37:31,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-02 18:37:31,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-02 18:37:31,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-02 18:37:31,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-02 18:37:31,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-02 18:37:31,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-02 18:37:31,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-02 18:37:31,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 18:37:31,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 18:37:31,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 18:37:31,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 18:37:31,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 18:37:31,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 18:37:31,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 18:37:31,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 18:37:31,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 18:37:31,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 18:37:31,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 18:37:31,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 18:37:31,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 18:37:31,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 18:37:31,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 18:37:31,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 18:37:31,146 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-02 18:37:31,153 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 18:37:31,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 18:37:31,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 18:37:31,154 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 18:37:31,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 18:37:31,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 18:37:31,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 18:37:31,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 18:37:31,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 18:37:31,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 18:37:31,155 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 18:37:31,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 18:37:31,155 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 18:37:31,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 18:37:31,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 18:37:31,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 18:37:31,156 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-02 18:37:31,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 18:37:31,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 18:37:31,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 18:37:31,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 18:37:31,157 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-02 18:37:31,157 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 18:37:31,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 18:37:31,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 18:37:31,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 18:37:31,417 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 18:37:31,417 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 18:37:31,418 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/in-de52.c [2021-05-02 18:37:31,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a50a08dd7/694c4e3961e6455a9280e860890e5a45/FLAGf742439dc [2021-05-02 18:37:31,766 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 18:37:31,767 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de52.c [2021-05-02 18:37:31,771 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a50a08dd7/694c4e3961e6455a9280e860890e5a45/FLAGf742439dc [2021-05-02 18:37:32,192 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a50a08dd7/694c4e3961e6455a9280e860890e5a45 [2021-05-02 18:37:32,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 18:37:32,195 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-02 18:37:32,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 18:37:32,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 18:37:32,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 18:37:32,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 06:37:32" (1/1) ... [2021-05-02 18:37:32,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c9cce42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:37:32, skipping insertion in model container [2021-05-02 18:37:32,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 06:37:32" (1/1) ... [2021-05-02 18:37:32,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 18:37:32,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 18:37:32,286 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-de52.c[368,381] [2021-05-02 18:37:32,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 18:37:32,298 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 18:37:32,305 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-de52.c[368,381] [2021-05-02 18:37:32,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 18:37:32,316 INFO L208 MainTranslator]: Completed translation [2021-05-02 18:37:32,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:37:32 WrapperNode [2021-05-02 18:37:32,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 18:37:32,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 18:37:32,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 18:37:32,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 18:37:32,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:37:32" (1/1) ... [2021-05-02 18:37:32,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:37:32" (1/1) ... [2021-05-02 18:37:32,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:37:32" (1/1) ... [2021-05-02 18:37:32,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:37:32" (1/1) ... [2021-05-02 18:37:32,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:37:32" (1/1) ... [2021-05-02 18:37:32,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:37:32" (1/1) ... [2021-05-02 18:37:32,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:37:32" (1/1) ... [2021-05-02 18:37:32,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 18:37:32,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 18:37:32,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 18:37:32,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 18:37:32,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:37:32" (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 18:37:32,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 18:37:32,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 18:37:32,446 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 18:37:32,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-02 18:37:32,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 18:37:32,446 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 18:37:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 18:37:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 18:37:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 18:37:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-05-02 18:37:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 18:37:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 18:37:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 18:37:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 18:37:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 18:37:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 18:37:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 18:37:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 18:37:32,780 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 18:37:32,781 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-05-02 18:37:32,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 06:37:32 BoogieIcfgContainer [2021-05-02 18:37:32,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 18:37:32,783 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-02 18:37:32,783 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-02 18:37:32,783 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-02 18:37:32,785 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 06:37:32" (1/1) ... [2021-05-02 18:37:32,861 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 (mod v_main_~x~0_4 4294967296)) InVars {main_~x~0=v_main_~x~0_4} OutVars{main_~x~0=v_main_~x~0_4} AuxVars[] AssignedVars[] [2021-05-02 18:37:32,885 WARN L240 tifierPushTermWalker]: treesize reduction 6, result has 92.0 percent of original size [2021-05-02 18:37:33,042 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2021-05-02 18:37:33,163 WARN L240 tifierPushTermWalker]: treesize reduction 14, result has 65.0 percent of original size [2021-05-02 18:37:33,169 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:33,186 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-02 18:37:33,188 WARN L245 tifierPushTermWalker]: treesize reduction 14, result has 65.0 percent of original size 26 [2021-05-02 18:37:33,194 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:33,201 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:33,210 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:33,225 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-02 18:37:33,226 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-02 18:37:33,227 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:33,248 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-02 18:37:33,255 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-05-02 18:37:33,256 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:33,259 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:33,265 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:33,276 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-02 18:37:33,280 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-02 18:37:33,281 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:33,304 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-05-02 18:37:33,305 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-05-02 18:37:33,306 WARN L240 tifierPushTermWalker]: treesize reduction 14, result has 76.3 percent of original size [2021-05-02 18:37:33,333 WARN L245 tifierPushTermWalker]: treesize reduction 14, result has 76.3 percent of original size 45 [2021-05-02 18:37:33,349 WARN L245 tifierPushTermWalker]: treesize reduction 6, result has 92.0 percent of original size 69 [2021-05-02 18:37:33,401 INFO L1112 elerationTransformer]: Accelerated Formula: (and (< 0 (mod v_main_~x~0_4 4294967296)) (= (+ v_main_~x~0_3 1) v_main_~x~0_4) (= v_main_~y~0_5 (+ v_main_~y~0_6 1))) 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~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_4 4294967296))) (or (and (< 0 .cse0) (= v_main_~y~0_5 (+ v_itFin_1 v_main_~y~0_6)) (< 0 v_itFin_1) (<= (mod (+ (* v_itFin_1 4294967295) v_main_~x~0_4) 4294967296) 0) (= v_main_~x~0_4 (+ v_itFin_1 v_main_~x~0_3)) (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 (* 4294967296 aux_div_v_it_1_56)) (.cse2 (+ .cse1 (* 4294967295 aux_div_aux_mod_aux_mod_v_it_1_56_95_93) v_main_~x~0_4))) (or (< v_itFin_1 (+ aux_div_aux_mod_aux_mod_v_it_1_56_95_93 1)) (<= 4294967295 .cse1) (< .cse2 .cse3) (< .cse1 0) (< .cse3 .cse2) (< (+ 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) 1)))))) (and (= v_main_~y~0_6 v_main_~y~0_5) (= |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_4 v_main_~x~0_3) (<= .cse0 0)))) InVars {main_~y~0=v_main_~y~0_6, main_~x~0=v_main_~x~0_4, main_#t~post8=|v_main_#t~post8_3|, main_#t~post9=|v_main_#t~post9_3|} OutVars{main_~y~0=v_main_~y~0_5, main_~x~0=v_main_~x~0_3, 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 18:37:33,408 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 (mod v_main_~z~0_8 4294967296)) InVars {main_~z~0=v_main_~z~0_8} OutVars{main_~z~0=v_main_~z~0_8} AuxVars[] AssignedVars[] [2021-05-02 18:37:33,411 WARN L240 tifierPushTermWalker]: treesize reduction 6, result has 92.0 percent of original size [2021-05-02 18:37:33,468 WARN L245 tifierPushTermWalker]: treesize reduction 6, result has 92.0 percent of original size 69 [2021-05-02 18:37:33,497 INFO L1112 elerationTransformer]: Accelerated Formula: (and (= (+ v_main_~z~0_7 1) v_main_~z~0_8) (= (+ v_main_~x~0_9 1) v_main_~x~0_8) (< 0 (mod v_main_~z~0_8 4294967296))) InVars {main_~x~0=v_main_~x~0_9, main_~z~0=v_main_~z~0_8} OutVars{main_#t~post10=|v_main_#t~post10_1|, main_~x~0=v_main_~x~0_8, main_~z~0=v_main_~z~0_7, 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_8 4294967296))) (or (and (= v_main_~x~0_9 v_main_~x~0_8) (= |v_main_#t~post11_3| |v_main_#t~post11_1|) (= v_main_~z~0_8 v_main_~z~0_7) (<= .cse0 0) (= |v_main_#t~post10_3| |v_main_#t~post10_1|) (= v_itFin_2 0)) (and (<= (mod (+ v_main_~z~0_8 (* v_itFin_2 4294967295)) 4294967296) 0) (< 0 v_itFin_2) (= v_main_~x~0_8 (+ v_main_~x~0_9 v_itFin_2)) (< 0 .cse0) (= v_main_~z~0_8 (+ v_itFin_2 v_main_~z~0_7)) (< (div (+ (* v_main_~z~0_8 (- 4294967295)) (* v_itFin_2 (- 1))) (- 4294967296)) (+ (div (* v_main_~z~0_8 4294967295) 4294967296) 2))))) InVars {main_#t~post10=|v_main_#t~post10_3|, main_~x~0=v_main_~x~0_9, main_#t~post11=|v_main_#t~post11_3|, main_~z~0=v_main_~z~0_8} OutVars{main_#t~post10=|v_main_#t~post10_1|, main_~x~0=v_main_~x~0_8, main_#t~post11=|v_main_#t~post11_1|, main_~z~0=v_main_~z~0_7} AuxVars[v_itFin_2] AssignedVars[main_#t~post10, main_~x~0, main_~z~0, main_#t~post11] [2021-05-02 18:37:33,500 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 (mod v_main_~y~0_4 4294967296)) InVars {main_~y~0=v_main_~y~0_4} OutVars{main_~y~0=v_main_~y~0_4} AuxVars[] AssignedVars[] [2021-05-02 18:37:33,504 WARN L240 tifierPushTermWalker]: treesize reduction 6, result has 92.0 percent of original size [2021-05-02 18:37:33,679 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2021-05-02 18:37:33,716 WARN L245 tifierPushTermWalker]: treesize reduction 6, result has 92.0 percent of original size 69 [2021-05-02 18:37:33,741 INFO L1112 elerationTransformer]: Accelerated Formula: (and (= (+ v_main_~y~0_3 1) v_main_~y~0_4) (< 0 (mod v_main_~y~0_4 4294967296)) (= (+ v_main_~z~0_3 1) v_main_~z~0_2)) InVars {main_~z~0=v_main_~z~0_3, main_~y~0=v_main_~y~0_4} OutVars{main_~z~0=v_main_~z~0_2, main_~y~0=v_main_~y~0_3, main_#t~post12=|v_main_#t~post12_1|, main_#t~post13=|v_main_#t~post13_1|} AuxVars[] AssignedVars[main_~z~0, main_~y~0, main_#t~post12, main_#t~post13] with Formula: (let ((.cse0 (mod v_main_~y~0_4 4294967296))) (or (and (<= (mod (+ v_main_~y~0_4 (* v_itFin_3 4294967295)) 4294967296) 0) (< 0 v_itFin_3) (= v_main_~z~0_2 (+ v_itFin_3 v_main_~z~0_3)) (< 0 .cse0) (= v_main_~y~0_4 (+ v_itFin_3 v_main_~y~0_3)) (< (div (+ (* v_itFin_3 (- 1)) (* v_main_~y~0_4 (- 4294967295))) (- 4294967296)) (+ (div (* v_main_~y~0_4 4294967295) 4294967296) 2))) (and (= v_main_~y~0_4 v_main_~y~0_3) (= v_main_~z~0_3 v_main_~z~0_2) (= |v_main_#t~post13_3| |v_main_#t~post13_1|) (<= .cse0 0) (= |v_main_#t~post12_3| |v_main_#t~post12_1|) (= v_itFin_3 0)))) InVars {main_~y~0=v_main_~y~0_4, main_#t~post12=|v_main_#t~post12_3|, main_~z~0=v_main_~z~0_3, main_#t~post13=|v_main_#t~post13_3|} OutVars{main_~y~0=v_main_~y~0_3, main_#t~post12=|v_main_#t~post12_1|, main_~z~0=v_main_~z~0_2, main_#t~post13=|v_main_#t~post13_1|} AuxVars[v_itFin_3] AssignedVars[main_~z~0, main_~y~0, main_#t~post12, main_#t~post13] [2021-05-02 18:37:33,744 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 (mod v_main_~x~0_7 4294967296)) InVars {main_~x~0=v_main_~x~0_7} OutVars{main_~x~0=v_main_~x~0_7} AuxVars[] AssignedVars[] [2021-05-02 18:37:33,748 WARN L240 tifierPushTermWalker]: treesize reduction 6, result has 92.0 percent of original size [2021-05-02 18:37:33,818 WARN L245 tifierPushTermWalker]: treesize reduction 6, result has 92.0 percent of original size 69 [2021-05-02 18:37:33,846 INFO L1112 elerationTransformer]: Accelerated Formula: (and (= v_main_~x~0_7 (+ v_main_~x~0_6 1)) (= (+ v_main_~y~0_8 1) v_main_~y~0_7) (< 0 (mod v_main_~x~0_7 4294967296))) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{main_~x~0=v_main_~x~0_6, main_#t~post15=|v_main_#t~post15_1|, main_~y~0=v_main_~y~0_7, main_#t~post14=|v_main_#t~post14_1|} AuxVars[] AssignedVars[main_~x~0, main_#t~post15, main_~y~0, main_#t~post14] with Formula: (let ((.cse0 (mod v_main_~x~0_7 4294967296))) (or (and (<= (mod (+ v_main_~x~0_7 (* v_itFin_4 4294967295)) 4294967296) 0) (< 0 v_itFin_4) (= (+ v_main_~x~0_6 v_itFin_4) v_main_~x~0_7) (= v_main_~y~0_7 (+ v_main_~y~0_8 v_itFin_4)) (< 0 .cse0) (< (div (+ (* v_main_~x~0_7 (- 4294967295)) (* v_itFin_4 (- 1))) (- 4294967296)) (+ (div (* v_main_~x~0_7 4294967295) 4294967296) 2))) (and (= v_itFin_4 0) (= v_main_~y~0_8 v_main_~y~0_7) (= v_main_~x~0_7 v_main_~x~0_6) (= |v_main_#t~post15_3| |v_main_#t~post15_1|) (= |v_main_#t~post14_3| |v_main_#t~post14_1|) (<= .cse0 0)))) InVars {main_#t~post15=|v_main_#t~post15_3|, main_~y~0=v_main_~y~0_8, main_~x~0=v_main_~x~0_7, main_#t~post14=|v_main_#t~post14_3|} OutVars{main_#t~post15=|v_main_#t~post15_1|, main_~y~0=v_main_~y~0_7, main_~x~0=v_main_~x~0_6, main_#t~post14=|v_main_#t~post14_1|} AuxVars[v_itFin_4] AssignedVars[main_~x~0, main_#t~post15, main_~y~0, main_#t~post14] [2021-05-02 18:37:33,849 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< 0 (mod v_main_~z~0_10 4294967296)) InVars {main_~z~0=v_main_~z~0_10} OutVars{main_~z~0=v_main_~z~0_10} AuxVars[] AssignedVars[] [2021-05-02 18:37:33,852 WARN L240 tifierPushTermWalker]: treesize reduction 8, result has 89.6 percent of original size [2021-05-02 18:37:37,888 WARN L205 SmtUtils]: Spent 4.02 s on a formula simplification that was a NOOP. DAG size: 5 [2021-05-02 18:37:38,024 WARN L240 tifierPushTermWalker]: treesize reduction 14, result has 65.0 percent of original size [2021-05-02 18:37:38,025 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:38,033 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-02 18:37:38,033 WARN L245 tifierPushTermWalker]: treesize reduction 14, result has 65.0 percent of original size 26 [2021-05-02 18:37:38,034 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:38,036 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:38,037 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:38,044 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-02 18:37:38,045 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-02 18:37:38,045 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:38,059 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-05-02 18:37:38,059 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-05-02 18:37:38,060 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:38,062 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:38,063 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:38,069 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-02 18:37:38,070 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-05-02 18:37:38,070 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-02 18:37:38,084 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-05-02 18:37:38,084 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-05-02 18:37:38,085 WARN L240 tifierPushTermWalker]: treesize reduction 14, result has 75.9 percent of original size [2021-05-02 18:37:38,103 WARN L245 tifierPushTermWalker]: treesize reduction 14, result has 75.9 percent of original size 44 [2021-05-02 18:37:38,116 WARN L245 tifierPushTermWalker]: treesize reduction 8, result has 89.6 percent of original size 69 [2021-05-02 18:37:38,204 INFO L1112 elerationTransformer]: Accelerated Formula: (and (= v_main_~z~0_10 (+ v_main_~z~0_9 1)) (< 0 (mod v_main_~z~0_10 4294967296)) (= v_main_~y~0_11 (+ v_main_~y~0_10 1))) InVars {main_~z~0=v_main_~z~0_10, main_~y~0=v_main_~y~0_11} OutVars{main_~z~0=v_main_~z~0_9, main_#t~post16=|v_main_#t~post16_1|, main_~y~0=v_main_~y~0_10, main_#t~post17=|v_main_#t~post17_1|} AuxVars[] AssignedVars[main_~z~0, main_#t~post16, main_~y~0, main_#t~post17] with Formula: (let ((.cse0 (mod v_main_~z~0_10 4294967296))) (or (and (= (+ v_main_~z~0_9 v_itFin_5) v_main_~z~0_10) (< 0 .cse0) (<= (mod (+ (* v_itFin_5 4294967295) v_main_~z~0_10) 4294967296) 0) (forall ((aux_div_v_it_5_57 Int) (aux_div_aux_mod_v_it_5_57_96 Int) (aux_div_aux_mod_aux_mod_v_it_5_57_96_45 Int)) (let ((.cse3 (* 4294967295 aux_div_aux_mod_aux_mod_v_it_5_57_96_45))) (let ((.cse2 (+ (* 4294967295 aux_div_aux_mod_v_it_5_57_96) .cse3 v_main_~z~0_10)) (.cse1 (* 4294967296 aux_div_v_it_5_57))) (or (< .cse1 .cse2) (<= 4294967295 .cse3) (< v_itFin_5 (+ aux_div_aux_mod_v_it_5_57_96 aux_div_aux_mod_aux_mod_v_it_5_57_96_45 1)) (< .cse2 .cse1) (< aux_div_aux_mod_v_it_5_57_96 1) (< .cse3 0))))) (= v_main_~y~0_11 (+ v_itFin_5 v_main_~y~0_10)) (< 0 v_itFin_5)) (and (= |v_main_#t~post16_3| |v_main_#t~post16_1|) (<= .cse0 0) (= v_main_~y~0_11 v_main_~y~0_10) (= v_main_~z~0_10 v_main_~z~0_9) (= v_itFin_5 0) (= |v_main_#t~post17_3| |v_main_#t~post17_1|)))) InVars {main_~y~0=v_main_~y~0_11, main_#t~post16=|v_main_#t~post16_3|, main_#t~post17=|v_main_#t~post17_3|, main_~z~0=v_main_~z~0_10} OutVars{main_#t~post16=|v_main_#t~post16_1|, main_~y~0=v_main_~y~0_10, main_#t~post17=|v_main_#t~post17_1|, main_~z~0=v_main_~z~0_9} AuxVars[v_itFin_5] AssignedVars[main_~z~0, main_#t~post16, main_~y~0, main_#t~post17] [2021-05-02 18:37:38,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 06:37:38 BasicIcfg [2021-05-02 18:37:38,208 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-02 18:37:38,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 18:37:38,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 18:37:38,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 18:37:38,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 06:37:32" (1/4) ... [2021-05-02 18:37:38,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f6101e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 06:37:38, skipping insertion in model container [2021-05-02 18:37:38,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:37:32" (2/4) ... [2021-05-02 18:37:38,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f6101e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 06:37:38, skipping insertion in model container [2021-05-02 18:37:38,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 06:37:32" (3/4) ... [2021-05-02 18:37:38,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f6101e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 06:37:38, skipping insertion in model container [2021-05-02 18:37:38,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 06:37:38" (4/4) ... [2021-05-02 18:37:38,212 INFO L111 eAbstractionObserver]: Analyzing ICFG in-de52.cJordan [2021-05-02 18:37:38,216 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-02 18:37:38,218 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 18:37:38,228 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 18:37:38,245 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 18:37:38,245 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-02 18:37:38,245 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-02 18:37:38,245 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 18:37:38,245 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 18:37:38,245 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 18:37:38,246 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 18:37:38,246 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 18:37:38,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.75) internal successors, (28), 17 states have internal predecessors, (28), 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 18:37:38,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-05-02 18:37:38,262 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 18:37:38,263 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 18:37:38,263 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 18:37:38,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 18:37:38,266 INFO L82 PathProgramCache]: Analyzing trace with hash 702671213, now seen corresponding path program 1 times [2021-05-02 18:37:38,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 18:37:38,271 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026357404] [2021-05-02 18:37:38,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 18:37:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:37:38,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 18:37:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:37:38,407 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 18:37:38,407 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 18:37:38,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026357404] [2021-05-02 18:37:38,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026357404] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 18:37:38,408 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 18:37:38,408 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-02 18:37:38,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758400013] [2021-05-02 18:37:38,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-02 18:37:38,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 18:37:38,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-02 18:37:38,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 18:37:38,423 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.75) internal successors, (28), 17 states have internal predecessors, (28), 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 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 18:37:38,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 18:37:38,467 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2021-05-02 18:37:38,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 18:37:38,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 16 [2021-05-02 18:37:38,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 18:37:38,475 INFO L225 Difference]: With dead ends: 24 [2021-05-02 18:37:38,480 INFO L226 Difference]: Without dead ends: 17 [2021-05-02 18:37:38,481 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 18:37:38,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-05-02 18:37:38,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-05-02 18:37:38,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 18:37:38,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2021-05-02 18:37:38,500 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 16 [2021-05-02 18:37:38,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 18:37:38,500 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-05-02 18:37:38,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 18:37:38,501 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2021-05-02 18:37:38,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-05-02 18:37:38,501 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 18:37:38,501 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 18:37:38,502 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 18:37:38,502 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 18:37:38,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 18:37:38,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1128942900, now seen corresponding path program 1 times [2021-05-02 18:37:38,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 18:37:38,504 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919694269] [2021-05-02 18:37:38,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 18:37:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:37:38,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 18:37:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:37:38,662 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 18:37:38,663 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 18:37:38,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919694269] [2021-05-02 18:37:38,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919694269] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 18:37:38,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 18:37:38,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-02 18:37:38,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447643112] [2021-05-02 18:37:38,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-02 18:37:38,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 18:37:38,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-02 18:37:38,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-02 18:37:38,665 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 4 states have internal predecessors, (12), 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 18:37:38,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 18:37:38,815 INFO L93 Difference]: Finished difference Result 26 states and 34 transitions. [2021-05-02 18:37:38,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-02 18:37:38,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 4 states have internal predecessors, (12), 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 16 [2021-05-02 18:37:38,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 18:37:38,817 INFO L225 Difference]: With dead ends: 26 [2021-05-02 18:37:38,817 INFO L226 Difference]: Without dead ends: 23 [2021-05-02 18:37:38,817 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 89.5ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-05-02 18:37:38,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-05-02 18:37:38,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2021-05-02 18:37:38,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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) [2021-05-02 18:37:38,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2021-05-02 18:37:38,822 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 16 [2021-05-02 18:37:38,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 18:37:38,822 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-05-02 18:37:38,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 4 states have internal predecessors, (12), 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 18:37:38,822 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-05-02 18:37:38,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-02 18:37:38,823 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 18:37:38,823 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 18:37:38,823 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-02 18:37:38,823 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 18:37:38,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 18:37:38,824 INFO L82 PathProgramCache]: Analyzing trace with hash -610770875, now seen corresponding path program 1 times [2021-05-02 18:37:38,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 18:37:38,824 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630340845] [2021-05-02 18:37:38,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 18:37:38,848 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967295 .aux_div_aux_mod_v_it_5_57_96.1) (* 4294967295 .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.2) main_~z~0_7 (* (- 4294967296) .aux_div_v_it_5_57.0)) 0)) [2021-05-02 18:37:38,848 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.2) 4294967295) 0) [2021-05-02 18:37:38,848 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ .aux_div_aux_mod_v_it_5_57_96.1 .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.2 (- v_itFin_5_fresh_1) 1) 0)) [2021-05-02 18:37:38,848 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_5_57.0) (* (- 4294967295) .aux_div_aux_mod_v_it_5_57_96.1) (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.2) (- main_~z~0_7)) 0)) [2021-05-02 18:37:38,848 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.2) 0)) [2021-05-02 18:37:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:37:38,882 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967295 .aux_div_aux_mod_v_it_5_57_96.4) (* 4294967295 .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.5) main_~z~0_7 (* (- 4294967296) .aux_div_v_it_5_57.3)) 0)) [2021-05-02 18:37:38,882 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.5) 4294967295) 0) [2021-05-02 18:37:38,882 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ .aux_div_aux_mod_v_it_5_57_96.4 .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.5 (- v_itFin_5_fresh_1) 1) 0)) [2021-05-02 18:37:38,883 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_5_57.3) (* (- 4294967295) .aux_div_aux_mod_v_it_5_57_96.4) (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.5) (- main_~z~0_7)) 0)) [2021-05-02 18:37:38,883 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.5) 0)) [2021-05-02 18:37:38,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 18:37:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:37:38,956 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 18:37:38,956 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 18:37:38,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630340845] [2021-05-02 18:37:38,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630340845] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 18:37:38,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228198840] [2021-05-02 18:37:38,956 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 18:37:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:37:39,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 9 conjunts are in the unsatisfiable core [2021-05-02 18:37:39,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 18:37:39,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:37:39,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:37:39,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:37:39,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:37:39,123 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 18:37:39,124 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228198840] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 18:37:39,124 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 18:37:39,124 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-05-02 18:37:39,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682075668] [2021-05-02 18:37:39,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-02 18:37:39,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 18:37:39,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-02 18:37:39,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-05-02 18:37:39,125 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 18:37:39,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 18:37:39,371 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2021-05-02 18:37:39,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-02 18:37:39,371 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-05-02 18:37:39,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 18:37:39,373 INFO L225 Difference]: With dead ends: 37 [2021-05-02 18:37:39,373 INFO L226 Difference]: Without dead ends: 29 [2021-05-02 18:37:39,373 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 196.2ms TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-05-02 18:37:39,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-05-02 18:37:39,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2021-05-02 18:37:39,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.5) internal successors, (30), 20 states have internal predecessors, (30), 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 18:37:39,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2021-05-02 18:37:39,376 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 17 [2021-05-02 18:37:39,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 18:37:39,376 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2021-05-02 18:37:39,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 9 states have internal predecessors, (23), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-02 18:37:39,376 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2021-05-02 18:37:39,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-02 18:37:39,377 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 18:37:39,377 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 18:37:39,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-05-02 18:37:39,585 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 18:37:39,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 18:37:39,586 INFO L82 PathProgramCache]: Analyzing trace with hash 162216202, now seen corresponding path program 1 times [2021-05-02 18:37:39,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 18:37:39,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727856775] [2021-05-02 18:37:39,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 18:37:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:37:39,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 18:37:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:37:39,663 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 18:37:39,663 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 18:37:39,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727856775] [2021-05-02 18:37:39,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727856775] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 18:37:39,664 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892189096] [2021-05-02 18:37:39,664 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) [2021-05-02 18:37:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:37:39,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 9 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 18:37:39,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 18:37:39,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:37:39,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:37:39,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:37:39,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:37:39,785 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 18:37:39,785 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892189096] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 18:37:39,785 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 18:37:39,785 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-05-02 18:37:39,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196002998] [2021-05-02 18:37:39,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-02 18:37:39,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 18:37:39,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-02 18:37:39,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-05-02 18:37:39,786 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 10 states have internal predecessors, (24), 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 18:37:40,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 18:37:40,035 INFO L93 Difference]: Finished difference Result 42 states and 60 transitions. [2021-05-02 18:37:40,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-02 18:37:40,036 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 10 states have internal predecessors, (24), 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 17 [2021-05-02 18:37:40,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 18:37:40,036 INFO L225 Difference]: With dead ends: 42 [2021-05-02 18:37:40,036 INFO L226 Difference]: Without dead ends: 38 [2021-05-02 18:37:40,037 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 207.1ms TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2021-05-02 18:37:40,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-05-02 18:37:40,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2021-05-02 18:37:40,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 27 states have internal predecessors, (43), 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 18:37:40,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 47 transitions. [2021-05-02 18:37:40,039 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 47 transitions. Word has length 17 [2021-05-02 18:37:40,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 18:37:40,040 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 47 transitions. [2021-05-02 18:37:40,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 10 states have internal predecessors, (24), 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 18:37:40,040 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2021-05-02 18:37:40,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-05-02 18:37:40,040 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 18:37:40,040 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 18:37:40,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 18:37:40,248 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 18:37:40,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 18:37:40,248 INFO L82 PathProgramCache]: Analyzing trace with hash 760455623, now seen corresponding path program 1 times [2021-05-02 18:37:40,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 18:37:40,248 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759888207] [2021-05-02 18:37:40,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 18:37:40,257 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967295 .aux_div_aux_mod_v_it_5_57_96.1) (* 4294967295 .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.2) main_~z~0_7 (* (- 4294967296) .aux_div_v_it_5_57.0)) 0)) [2021-05-02 18:37:40,257 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.2) 4294967295) 0) [2021-05-02 18:37:40,258 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ .aux_div_aux_mod_v_it_5_57_96.1 .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.2 (- v_itFin_5_fresh_1) 1) 0)) [2021-05-02 18:37:40,258 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_5_57.0) (* (- 4294967295) .aux_div_aux_mod_v_it_5_57_96.1) (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.2) (- main_~z~0_7)) 0)) [2021-05-02 18:37:40,258 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.2) 0)) [2021-05-02 18:37:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:37:40,274 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967295 .aux_div_aux_mod_v_it_5_57_96.4) (* 4294967295 .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.5) main_~z~0_7 (* (- 4294967296) .aux_div_v_it_5_57.3)) 0)) [2021-05-02 18:37:40,274 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.5) 4294967295) 0) [2021-05-02 18:37:40,275 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ .aux_div_aux_mod_v_it_5_57_96.4 .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.5 (- v_itFin_5_fresh_1) 1) 0)) [2021-05-02 18:37:40,275 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_5_57.3) (* (- 4294967295) .aux_div_aux_mod_v_it_5_57_96.4) (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.5) (- main_~z~0_7)) 0)) [2021-05-02 18:37:40,275 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.5) 0)) [2021-05-02 18:37:40,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 18:37:40,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:37:40,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 18:37:40,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 18:37:40,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759888207] [2021-05-02 18:37:40,348 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759888207] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 18:37:40,348 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143363376] [2021-05-02 18:37:40,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-05-02 18:37:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:37:40,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 18:37:40,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 18:37:40,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:37:40,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:37:40,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:37:40,479 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:37:40,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:37:40,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 18:37:40,500 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143363376] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 18:37:40,500 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 18:37:40,500 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2021-05-02 18:37:40,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082487579] [2021-05-02 18:37:40,501 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-02 18:37:40,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 18:37:40,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-02 18:37:40,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-05-02 18:37:40,502 INFO L87 Difference]: Start difference. First operand 32 states and 47 transitions. Second operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 14 states have internal predecessors, (26), 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 18:37:40,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 18:37:40,881 INFO L93 Difference]: Finished difference Result 46 states and 66 transitions. [2021-05-02 18:37:40,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-02 18:37:40,882 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 14 states have internal predecessors, (26), 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 18 [2021-05-02 18:37:40,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 18:37:40,882 INFO L225 Difference]: With dead ends: 46 [2021-05-02 18:37:40,882 INFO L226 Difference]: Without dead ends: 27 [2021-05-02 18:37:40,882 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 335.0ms TimeCoverageRelationStatistics Valid=144, Invalid=558, Unknown=0, NotChecked=0, Total=702 [2021-05-02 18:37:40,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-05-02 18:37:40,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-05-02 18:37:40,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 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 18:37:40,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2021-05-02 18:37:40,885 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 35 transitions. Word has length 18 [2021-05-02 18:37:40,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 18:37:40,885 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 35 transitions. [2021-05-02 18:37:40,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 14 states have internal predecessors, (26), 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 18:37:40,885 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2021-05-02 18:37:40,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-05-02 18:37:40,885 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 18:37:40,885 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 18:37:41,096 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 18:37:41,097 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 18:37:41,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 18:37:41,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1893166358, now seen corresponding path program 1 times [2021-05-02 18:37:41,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 18:37:41,098 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961654110] [2021-05-02 18:37:41,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 18:37:41,102 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 18:37:41,102 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_1_56.2) (* (- 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) (- main_~x~0_5)) 0)) [2021-05-02 18:37:41,102 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 18:37:41,102 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) (* 4294967295 .aux_div_aux_mod_aux_mod_v_it_1_56_95_93.1) main_~x~0_5 (* (- 4294967296) .aux_div_v_it_1_56.2)) 0)) [2021-05-02 18:37:41,102 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (- .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 18:37:41,111 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967295 .aux_div_aux_mod_v_it_5_57_96.4) (* 4294967295 .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.5) main_~z~0_10 (* (- 4294967296) .aux_div_v_it_5_57.3)) 0)) [2021-05-02 18:37:41,111 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.5) 4294967295) 0) [2021-05-02 18:37:41,111 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ .aux_div_aux_mod_v_it_5_57_96.4 .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.5 (- v_itFin_5_fresh_1) 1) 0)) [2021-05-02 18:37:41,111 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_5_57.3) (* (- 4294967295) .aux_div_aux_mod_v_it_5_57_96.4) (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.5) (- main_~z~0_10)) 0)) [2021-05-02 18:37:41,111 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.5) 0)) [2021-05-02 18:37:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:37:41,153 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_56.7) 4294967295) 0) [2021-05-02 18:37:41,153 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_1_56.9) (* (- 4294967295) .aux_div_aux_mod_aux_mod_aux_mod_v_it_1_56_95_93_56.7) (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_1_56_95_93.8) (- main_~x~0_5)) 0)) [2021-05-02 18:37:41,153 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_56.7) 0)) [2021-05-02 18:37:41,153 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_56.7) (* 4294967295 .aux_div_aux_mod_aux_mod_v_it_1_56_95_93.8) main_~x~0_5 (* (- 4294967296) .aux_div_v_it_1_56.9)) 0)) [2021-05-02 18:37:41,153 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (- .aux_div_aux_mod_aux_mod_aux_mod_v_it_1_56_95_93_56.7) (- .aux_div_aux_mod_aux_mod_v_it_1_56_95_93.8) 1) 0)) [2021-05-02 18:37:41,175 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967295 .aux_div_aux_mod_v_it_5_57_96.11) (* 4294967295 .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.12) main_~z~0_10 (* (- 4294967296) .aux_div_v_it_5_57.10)) 0)) [2021-05-02 18:37:41,175 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (<= (+ (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.12) 4294967295) 0) [2021-05-02 18:37:41,175 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ .aux_div_aux_mod_v_it_5_57_96.11 .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.12 (- v_itFin_5_fresh_1) 1) 0)) [2021-05-02 18:37:41,175 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_5_57.10) (* (- 4294967295) .aux_div_aux_mod_v_it_5_57_96.11) (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.12) (- main_~z~0_10)) 0)) [2021-05-02 18:37:41,175 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (* (- 4294967295) .aux_div_aux_mod_aux_mod_v_it_5_57_96_45.12) 0)) [2021-05-02 18:37:41,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 18:37:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:37:41,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-02 18:37:41,302 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 18:37:41,302 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961654110] [2021-05-02 18:37:41,302 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961654110] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 18:37:41,302 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915619737] [2021-05-02 18:37:41,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 18:37:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:37:41,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-02 18:37:41,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 18:37:41,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:37:41,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:37:41,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 18:37:41,397 WARN L159 QuantifierPusher]: Ignoring assumption.