/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 0.2.2-dev-b030c9e [2022-03-20 04:00:15,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 04:00:15,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 04:00:15,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-20 04:00:15,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 04:00:15,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 04:00:15,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 04:00:15,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 04:00:15,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 04:00:15,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 04:00:15,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 04:00:15,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 04:00:15,624 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 04:00:15,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 04:00:15,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 04:00:15,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 04:00:15,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 04:00:15,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 04:00:15,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 04:00:15,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 04:00:15,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 04:00:15,640 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-20 04:00:15,648 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 04:00:15,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 04:00:15,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 04:00:15,650 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 04:00:15,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 04:00:15,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 04:00:15,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 04:00:15,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 04:00:15,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 04:00:15,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 04:00:15,652 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 04:00:15,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 04:00:15,653 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 04:00:15,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 04:00:15,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 04:00:15,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 04:00:15,654 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 04:00:15,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 04:00:15,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 04:00:15,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 04:00:15,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 04:00:15,656 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 04:00:15,657 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 04:00:15,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 04:00:15,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 04:00:15,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 04:00:15,899 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 04:00:15,900 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 04:00:15,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/in-de20.c [2022-03-20 04:00:15,969 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a10298f0/505c4f5aea0d481eb822d5033c06000b/FLAG8411c8330 [2022-03-20 04:00:16,336 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 04:00:16,336 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de20.c [2022-03-20 04:00:16,340 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a10298f0/505c4f5aea0d481eb822d5033c06000b/FLAG8411c8330 [2022-03-20 04:00:16,350 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a10298f0/505c4f5aea0d481eb822d5033c06000b [2022-03-20 04:00:16,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 04:00:16,353 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 04:00:16,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 04:00:16,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 04:00:16,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 04:00:16,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 04:00:16" (1/1) ... [2022-03-20 04:00:16,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6607f339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:00:16, skipping insertion in model container [2022-03-20 04:00:16,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 04:00:16" (1/1) ... [2022-03-20 04:00:16,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 04:00:16,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 04:00:16,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de20.c[368,381] [2022-03-20 04:00:16,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 04:00:16,529 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 04:00:16,539 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/in-de20.c[368,381] [2022-03-20 04:00:16,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 04:00:16,552 INFO L208 MainTranslator]: Completed translation [2022-03-20 04:00:16,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:00:16 WrapperNode [2022-03-20 04:00:16,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 04:00:16,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 04:00:16,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 04:00:16,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 04:00:16,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:00:16" (1/1) ... [2022-03-20 04:00:16,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:00:16" (1/1) ... [2022-03-20 04:00:16,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:00:16" (1/1) ... [2022-03-20 04:00:16,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:00:16" (1/1) ... [2022-03-20 04:00:16,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:00:16" (1/1) ... [2022-03-20 04:00:16,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:00:16" (1/1) ... [2022-03-20 04:00:16,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:00:16" (1/1) ... [2022-03-20 04:00:16,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 04:00:16,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 04:00:16,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 04:00:16,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 04:00:16,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:00:16" (1/1) ... [2022-03-20 04:00:16,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 04:00:16,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 04:00:16,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 04:00:16,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 04:00:16,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 04:00:16,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 04:00:16,652 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 04:00:16,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 04:00:16,653 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 04:00:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 04:00:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 04:00:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 04:00:16,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 04:00:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-03-20 04:00:16,654 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 04:00:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 04:00:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 04:00:16,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 04:00:16,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 04:00:16,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 04:00:16,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 04:00:16,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 04:00:16,709 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 04:00:16,710 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 04:00:16,812 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 04:00:16,817 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 04:00:16,817 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-03-20 04:00:16,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 04:00:16 BoogieIcfgContainer [2022-03-20 04:00:16,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 04:00:16,820 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 04:00:16,820 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 04:00:16,821 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 04:00:16,824 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 04:00:16" (1/1) ... [2022-03-20 04:00:16,825 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-03-20 04:00:17,079 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 2 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 04:00:17,080 INFO L91 elerationTransformer]: Accelerated Formula: (and (< 0 (mod v_main_~x~0_6 4294967296)) (= v_main_~x~0_6 (+ v_main_~x~0_5 1)) (= 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~post5=|v_main_#t~post5_1|, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_#t~post5, main_#t~post6] to Formula: (let ((.cse0 (mod v_main_~x~0_6 4294967296))) (or (and (forall ((v_it_1 Int)) (or (< 0 (mod (+ v_main_~x~0_6 (* v_it_1 4294967295)) 4294967296)) (not (<= 1 v_it_1)) (not (<= (+ v_main_~x~0_5 v_it_1 1) v_main_~x~0_6)))) (< 0 .cse0) (< v_main_~x~0_5 v_main_~x~0_6) (= v_main_~y~0_2 (+ v_main_~x~0_6 v_main_~y~0_3 (* (- 1) v_main_~x~0_5)))) (and (= |v_main_#t~post5_3| |v_main_#t~post5_1|) (= |v_main_#t~post6_3| |v_main_#t~post6_1|) (= v_main_~y~0_3 v_main_~y~0_2) (= v_main_~x~0_5 v_main_~x~0_6) (<= .cse0 0)))) InVars {main_~y~0=v_main_~y~0_3, main_#t~post5=|v_main_#t~post5_3|, main_~x~0=v_main_~x~0_6, main_#t~post6=|v_main_#t~post6_3|} OutVars{main_~y~0=v_main_~y~0_2, main_#t~post5=|v_main_#t~post5_1|, main_~x~0=v_main_~x~0_5, main_#t~post6=|v_main_#t~post6_1|} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_#t~post5, main_#t~post6] [2022-03-20 04:00:17,197 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 2 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=1, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 04:00:17,198 INFO L91 elerationTransformer]: Accelerated Formula: (and (< 0 (mod v_main_~z~0_4 4294967296)) (= (+ v_main_~x~0_3 1) v_main_~x~0_2) (= (+ v_main_~z~0_3 1) v_main_~z~0_4)) InVars {main_~x~0=v_main_~x~0_3, main_~z~0=v_main_~z~0_4} OutVars{main_~x~0=v_main_~x~0_2, main_~z~0=v_main_~z~0_3, main_#t~post8=|v_main_#t~post8_1|, main_#t~post7=|v_main_#t~post7_1|} AuxVars[] AssignedVars[main_~x~0, main_~z~0, main_#t~post8, main_#t~post7] to Formula: (let ((.cse0 (mod v_main_~z~0_4 4294967296))) (or (and (<= .cse0 0) (= v_main_~x~0_3 v_main_~x~0_2) (= |v_main_#t~post7_3| |v_main_#t~post7_1|) (= v_main_~z~0_3 v_main_~z~0_4) (= |v_main_#t~post8_3| |v_main_#t~post8_1|)) (and (< 0 .cse0) (forall ((v_it_2 Int)) (or (< 0 (mod (+ v_main_~z~0_4 (* v_it_2 4294967295)) 4294967296)) (not (<= (+ v_main_~z~0_3 v_it_2 1) v_main_~z~0_4)) (not (<= 1 v_it_2)))) (< v_main_~z~0_3 v_main_~z~0_4) (= (+ (* (- 1) v_main_~z~0_3) v_main_~x~0_3 v_main_~z~0_4) v_main_~x~0_2)))) InVars {main_~x~0=v_main_~x~0_3, main_#t~post8=|v_main_#t~post8_3|, main_~z~0=v_main_~z~0_4, main_#t~post7=|v_main_#t~post7_3|} OutVars{main_~x~0=v_main_~x~0_2, main_#t~post8=|v_main_#t~post8_1|, main_~z~0=v_main_~z~0_3, main_#t~post7=|v_main_#t~post7_1|} AuxVars[] AssignedVars[main_~x~0, main_~z~0, main_#t~post8, main_#t~post7] [2022-03-20 04:00:17,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 04:00:17 BasicIcfg [2022-03-20 04:00:17,201 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 04:00:17,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 04:00:17,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 04:00:17,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 04:00:17,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 04:00:16" (1/4) ... [2022-03-20 04:00:17,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb6e0c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 04:00:17, skipping insertion in model container [2022-03-20 04:00:17,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 04:00:16" (2/4) ... [2022-03-20 04:00:17,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb6e0c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 04:00:17, skipping insertion in model container [2022-03-20 04:00:17,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 04:00:16" (3/4) ... [2022-03-20 04:00:17,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb6e0c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 04:00:17, skipping insertion in model container [2022-03-20 04:00:17,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 04:00:17" (4/4) ... [2022-03-20 04:00:17,219 INFO L111 eAbstractionObserver]: Analyzing ICFG in-de20.cJordan [2022-03-20 04:00:17,223 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-20 04:00:17,223 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 04:00:17,252 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 04:00:17,259 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 04:00:17,259 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 04:00:17,275 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) [2022-03-20 04:00:17,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-03-20 04:00:17,282 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 04:00:17,283 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 04:00:17,283 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 04:00:17,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 04:00:17,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1032895658, now seen corresponding path program 1 times [2022-03-20 04:00:17,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 04:00:17,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377967584] [2022-03-20 04:00:17,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 04:00:17,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 04:00:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:00:17,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 04:00:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:00:17,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 04:00:17,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 04:00:17,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377967584] [2022-03-20 04:00:17,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377967584] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 04:00:17,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 04:00:17,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-20 04:00:17,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131019854] [2022-03-20 04:00:17,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 04:00:17,465 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 04:00:17,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 04:00:17,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 04:00:17,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 04:00:17,500 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) [2022-03-20 04:00:17,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 04:00:17,532 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-03-20 04:00:17,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 04:00:17,540 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 [2022-03-20 04:00:17,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 04:00:17,554 INFO L225 Difference]: With dead ends: 21 [2022-03-20 04:00:17,554 INFO L226 Difference]: Without dead ends: 14 [2022-03-20 04:00:17,555 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-20 04:00:17,559 INFO L913 BasicCegarLoop]: 21 mSDtfsCounter, 13 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 04:00:17,561 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 24 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 04:00:17,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-03-20 04:00:17,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-03-20 04:00:17,588 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) [2022-03-20 04:00:17,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-03-20 04:00:17,589 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 13 [2022-03-20 04:00:17,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 04:00:17,590 INFO L478 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-03-20 04:00:17,590 INFO L479 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) [2022-03-20 04:00:17,590 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-03-20 04:00:17,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-03-20 04:00:17,591 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 04:00:17,591 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 04:00:17,591 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 04:00:17,592 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 04:00:17,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 04:00:17,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1920399339, now seen corresponding path program 1 times [2022-03-20 04:00:17,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 04:00:17,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329534053] [2022-03-20 04:00:17,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 04:00:17,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 04:00:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:00:17,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 04:00:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:00:17,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 04:00:17,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 04:00:17,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329534053] [2022-03-20 04:00:17,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329534053] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 04:00:17,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 04:00:17,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 04:00:17,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173095843] [2022-03-20 04:00:17,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 04:00:17,792 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 04:00:17,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 04:00:17,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 04:00:17,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 04:00:17,797 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) [2022-03-20 04:00:17,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 04:00:17,868 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-03-20 04:00:17,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 04:00:17,869 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 [2022-03-20 04:00:17,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 04:00:17,870 INFO L225 Difference]: With dead ends: 21 [2022-03-20 04:00:17,870 INFO L226 Difference]: Without dead ends: 18 [2022-03-20 04:00:17,870 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-20 04:00:17,872 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 10 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 04:00:17,872 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 29 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 2 Unchecked, 0.0s Time] [2022-03-20 04:00:17,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-03-20 04:00:17,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-03-20 04:00:17,880 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) [2022-03-20 04:00:17,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-03-20 04:00:17,882 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 13 [2022-03-20 04:00:17,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 04:00:17,884 INFO L478 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-03-20 04:00:17,885 INFO L479 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) [2022-03-20 04:00:17,890 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-03-20 04:00:17,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-03-20 04:00:17,891 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 04:00:17,891 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 04:00:17,891 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 04:00:17,891 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 04:00:17,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 04:00:17,892 INFO L85 PathProgramCache]: Analyzing trace with hash -570442020, now seen corresponding path program 1 times [2022-03-20 04:00:17,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 04:00:17,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603105520] [2022-03-20 04:00:17,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 04:00:17,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 04:00:17,913 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_2.0))) (+ main_~z~0_7 .cse0 (* (- 4294967296) (div (+ main_~z~0_7 .cse0) 4294967296)))) 0)) [2022-03-20 04:00:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:00:17,985 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_2.1))) (+ main_~z~0_7 .cse0 (* (- 4294967296) (div (+ main_~z~0_7 .cse0) 4294967296)))) 0)) [2022-03-20 04:00:18,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 04:00:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:00:18,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-20 04:00:18,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 04:00:18,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603105520] [2022-03-20 04:00:18,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603105520] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 04:00:18,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 04:00:18,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 04:00:18,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612157723] [2022-03-20 04:00:18,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 04:00:18,153 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 04:00:18,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 04:00:18,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 04:00:18,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-20 04:00:18,154 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:00:18,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 04:00:18,257 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-03-20 04:00:18,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-20 04:00:18,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-03-20 04:00:18,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 04:00:18,259 INFO L225 Difference]: With dead ends: 22 [2022-03-20 04:00:18,259 INFO L226 Difference]: Without dead ends: 16 [2022-03-20 04:00:18,262 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-03-20 04:00:18,267 INFO L913 BasicCegarLoop]: 10 mSDtfsCounter, 13 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 04:00:18,268 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 37 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 2 Unchecked, 0.0s Time] [2022-03-20 04:00:18,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-03-20 04:00:18,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2022-03-20 04:00:18,272 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) [2022-03-20 04:00:18,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-03-20 04:00:18,273 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 14 [2022-03-20 04:00:18,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 04:00:18,274 INFO L478 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-03-20 04:00:18,274 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:00:18,274 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-03-20 04:00:18,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-03-20 04:00:18,275 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 04:00:18,275 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 04:00:18,275 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 04:00:18,275 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 04:00:18,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 04:00:18,276 INFO L85 PathProgramCache]: Analyzing trace with hash -688526500, now seen corresponding path program 1 times [2022-03-20 04:00:18,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 04:00:18,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440564337] [2022-03-20 04:00:18,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 04:00:18,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 04:00:18,295 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_1.0))) (+ main_~x~0_5 .cse0 (* (- 4294967296) (div (+ main_~x~0_5 .cse0) 4294967296)))) 0)) [2022-03-20 04:00:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:00:18,337 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_1.2))) (+ main_~x~0_5 .cse0 (* (- 4294967296) (div (+ main_~x~0_5 .cse0) 4294967296)))) 0)) [2022-03-20 04:00:18,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 04:00:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:00:18,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 04:00:18,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 04:00:18,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440564337] [2022-03-20 04:00:18,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440564337] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 04:00:18,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864866282] [2022-03-20 04:00:18,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 04:00:18,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 04:00:18,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 04:00:18,668 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 04:00:18,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 04:00:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:00:18,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-20 04:00:18,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 04:00:19,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 04:00:19,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 04:00:25,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 04:00:25,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864866282] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 04:00:25,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 04:00:25,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 21 [2022-03-20 04:00:25,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422791284] [2022-03-20 04:00:25,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 04:00:25,681 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-20 04:00:25,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 04:00:25,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-20 04:00:25,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=331, Unknown=2, NotChecked=0, Total=420 [2022-03-20 04:00:25,683 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 21 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:00:25,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 04:00:25,735 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2022-03-20 04:00:25,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 04:00:25,735 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-03-20 04:00:25,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 04:00:25,736 INFO L225 Difference]: With dead ends: 21 [2022-03-20 04:00:25,736 INFO L226 Difference]: Without dead ends: 18 [2022-03-20 04:00:25,736 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=113, Invalid=437, Unknown=2, NotChecked=0, Total=552 [2022-03-20 04:00:25,737 INFO L913 BasicCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 04:00:25,737 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 64 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2022-03-20 04:00:25,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-03-20 04:00:25,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-03-20 04:00:25,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:00:25,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-03-20 04:00:25,740 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 14 [2022-03-20 04:00:25,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 04:00:25,740 INFO L478 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-03-20 04:00:25,741 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 4 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 04:00:25,741 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-03-20 04:00:25,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-03-20 04:00:25,741 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 04:00:25,741 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 04:00:25,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 04:00:25,955 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 04:00:25,956 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 04:00:25,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 04:00:25,956 INFO L85 PathProgramCache]: Analyzing trace with hash 157235595, now seen corresponding path program 1 times [2022-03-20 04:00:25,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 04:00:25,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391870526] [2022-03-20 04:00:25,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 04:00:25,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 04:00:25,965 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_1.0))) (+ main_~x~0_5 .cse0 (* (- 4294967296) (div (+ main_~x~0_5 .cse0) 4294967296)))) 0)) [2022-03-20 04:00:25,966 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_2.1))) (+ main_~z~0_8 .cse0 (* (- 4294967296) (div (+ main_~z~0_8 .cse0) 4294967296)))) 0)) [2022-03-20 04:00:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:00:26,027 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_1.4))) (+ main_~x~0_5 .cse0 (* (- 4294967296) (div (+ main_~x~0_5 .cse0) 4294967296)))) 0)) [2022-03-20 04:00:26,051 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (let ((.cse0 (* 4294967295 .v_it_2.5))) (+ main_~z~0_8 .cse0 (* (- 4294967296) (div (+ main_~z~0_8 .cse0) 4294967296)))) 0)) [2022-03-20 04:00:26,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 04:00:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 04:00:26,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 04:00:26,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 04:00:26,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391870526] [2022-03-20 04:00:26,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391870526] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 04:00:26,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971015299] [2022-03-20 04:00:26,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 04:00:26,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 04:00:26,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 04:00:26,411 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 04:00:26,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process