/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/array-patterns/array10_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 10:05:40,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 10:05:40,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 10:05:40,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 10:05:40,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 10:05:40,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 10:05:40,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 10:05:40,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 10:05:40,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 10:05:40,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 10:05:40,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 10:05:40,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 10:05:40,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 10:05:40,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 10:05:40,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 10:05:40,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 10:05:40,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 10:05:40,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 10:05:40,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 10:05:40,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 10:05:40,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 10:05:40,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 10:05:40,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 10:05:40,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 10:05:40,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 10:05:40,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 10:05:40,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 10:05:40,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 10:05:40,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 10:05:40,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 10:05:40,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 10:05:40,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 10:05:40,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 10:05:40,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 10:05:40,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 10:05:40,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 10:05:40,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 10:05:40,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 10:05:40,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 10:05:40,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 10:05:40,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 10:05:40,825 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 10:05:40,831 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 10:05:40,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 10:05:40,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 10:05:40,832 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 10:05:40,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 10:05:40,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 10:05:40,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 10:05:40,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 10:05:40,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 10:05:40,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 10:05:40,833 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 10:05:40,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 10:05:40,833 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 10:05:40,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 10:05:40,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 10:05:40,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 10:05:40,833 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 10:05:40,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 10:05:40,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 10:05:40,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 10:05:40,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 10:05:40,834 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 10:05:40,834 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 10:05:41,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 10:05:41,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 10:05:41,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 10:05:41,038 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 10:05:41,038 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 10:05:41,039 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array10_pattern.c [2022-01-31 10:05:41,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb0e7e511/cb59cccee96743328fd4268284a14db9/FLAG1c4bd5aa1 [2022-01-31 10:05:41,430 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 10:05:41,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array10_pattern.c [2022-01-31 10:05:41,435 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb0e7e511/cb59cccee96743328fd4268284a14db9/FLAG1c4bd5aa1 [2022-01-31 10:05:41,443 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb0e7e511/cb59cccee96743328fd4268284a14db9 [2022-01-31 10:05:41,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 10:05:41,446 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 10:05:41,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 10:05:41,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 10:05:41,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 10:05:41,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:05:41" (1/1) ... [2022-01-31 10:05:41,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31352d51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:05:41, skipping insertion in model container [2022-01-31 10:05:41,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:05:41" (1/1) ... [2022-01-31 10:05:41,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 10:05:41,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 10:05:41,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array10_pattern.c[1326,1339] [2022-01-31 10:05:41,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 10:05:41,611 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 10:05:41,619 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array10_pattern.c[1326,1339] [2022-01-31 10:05:41,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 10:05:41,635 INFO L208 MainTranslator]: Completed translation [2022-01-31 10:05:41,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:05:41 WrapperNode [2022-01-31 10:05:41,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 10:05:41,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 10:05:41,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 10:05:41,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 10:05:41,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:05:41" (1/1) ... [2022-01-31 10:05:41,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:05:41" (1/1) ... [2022-01-31 10:05:41,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:05:41" (1/1) ... [2022-01-31 10:05:41,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:05:41" (1/1) ... [2022-01-31 10:05:41,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:05:41" (1/1) ... [2022-01-31 10:05:41,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:05:41" (1/1) ... [2022-01-31 10:05:41,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:05:41" (1/1) ... [2022-01-31 10:05:41,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 10:05:41,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 10:05:41,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 10:05:41,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 10:05:41,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:05:41" (1/1) ... [2022-01-31 10:05:41,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 10:05:41,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:05:41,703 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) [2022-01-31 10:05:41,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 10:05:41,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 10:05:41,734 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 10:05:41,734 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-31 10:05:41,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 10:05:41,735 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 10:05:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 10:05:41,727 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 [2022-01-31 10:05:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 10:05:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 10:05:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 10:05:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-31 10:05:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 10:05:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 10:05:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2022-01-31 10:05:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 10:05:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 10:05:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 10:05:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 10:05:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 10:05:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 10:05:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 10:05:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 10:05:41,798 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 10:05:41,799 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 10:05:41,914 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 10:05:41,919 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 10:05:41,919 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-31 10:05:41,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:05:41 BoogieIcfgContainer [2022-01-31 10:05:41,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 10:05:41,921 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 10:05:41,921 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 10:05:41,933 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 10:05:41,935 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:05:41" (1/1) ... [2022-01-31 10:05:41,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 10:05:41 BasicIcfg [2022-01-31 10:05:41,950 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 10:05:41,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 10:05:41,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 10:05:41,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 10:05:41,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:05:41" (1/4) ... [2022-01-31 10:05:41,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b07525a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:05:41, skipping insertion in model container [2022-01-31 10:05:41,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:05:41" (2/4) ... [2022-01-31 10:05:41,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b07525a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:05:41, skipping insertion in model container [2022-01-31 10:05:41,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:05:41" (3/4) ... [2022-01-31 10:05:41,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b07525a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:05:41, skipping insertion in model container [2022-01-31 10:05:41,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 10:05:41" (4/4) ... [2022-01-31 10:05:41,957 INFO L111 eAbstractionObserver]: Analyzing ICFG array10_pattern.cJordan [2022-01-31 10:05:41,960 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 10:05:41,961 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 10:05:42,006 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 10:05:42,010 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-31 10:05:42,010 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 10:05:42,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 25 states have internal predecessors, (35), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-31 10:05:42,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-31 10:05:42,025 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:05:42,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:05:42,026 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:05:42,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:05:42,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1588046783, now seen corresponding path program 1 times [2022-01-31 10:05:42,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:05:42,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781611821] [2022-01-31 10:05:42,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:05:42,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:05:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:05:42,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 10:05:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:05:42,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 10:05:42,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:05:42,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 10:05:42,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:05:42,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781611821] [2022-01-31 10:05:42,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781611821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 10:05:42,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 10:05:42,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-31 10:05:42,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220740720] [2022-01-31 10:05:42,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 10:05:42,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 10:05:42,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:05:42,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 10:05:42,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 10:05:42,247 INFO L87 Difference]: Start difference. First operand has 35 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 25 states have internal predecessors, (35), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 10:05:42,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:05:42,315 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2022-01-31 10:05:42,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 10:05:42,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-01-31 10:05:42,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:05:42,325 INFO L225 Difference]: With dead ends: 35 [2022-01-31 10:05:42,325 INFO L226 Difference]: Without dead ends: 28 [2022-01-31 10:05:42,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 10:05:42,331 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 8 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 10:05:42,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 43 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 10:05:42,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-01-31 10:05:42,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-01-31 10:05:42,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 10:05:42,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-01-31 10:05:42,363 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 20 [2022-01-31 10:05:42,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:05:42,363 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-01-31 10:05:42,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 10:05:42,363 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-01-31 10:05:42,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-31 10:05:42,364 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:05:42,364 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:05:42,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 10:05:42,365 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:05:42,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:05:42,365 INFO L85 PathProgramCache]: Analyzing trace with hash 120049038, now seen corresponding path program 1 times [2022-01-31 10:05:42,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:05:42,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005930451] [2022-01-31 10:05:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:05:42,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:05:42,403 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:05:42,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [928067234] [2022-01-31 10:05:42,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:05:42,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:05:42,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:05:42,406 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) [2022-01-31 10:05:42,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-31 10:05:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:05:42,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-31 10:05:42,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:05:42,610 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 10:05:42,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-31 10:05:42,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:05:42,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005930451] [2022-01-31 10:05:42,611 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:05:42,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928067234] [2022-01-31 10:05:42,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928067234] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 10:05:42,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 10:05:42,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 10:05:42,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222850800] [2022-01-31 10:05:42,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 10:05:42,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 10:05:42,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:05:42,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 10:05:42,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-31 10:05:42,613 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 10:05:42,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:05:42,669 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2022-01-31 10:05:42,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 10:05:42,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2022-01-31 10:05:42,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:05:42,670 INFO L225 Difference]: With dead ends: 36 [2022-01-31 10:05:42,671 INFO L226 Difference]: Without dead ends: 36 [2022-01-31 10:05:42,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-01-31 10:05:42,672 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 29 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 10:05:42,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 79 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 10:05:42,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-01-31 10:05:42,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2022-01-31 10:05:42,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 10:05:42,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-01-31 10:05:42,680 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 29 [2022-01-31 10:05:42,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:05:42,680 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-01-31 10:05:42,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 10:05:42,681 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-01-31 10:05:42,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-31 10:05:42,681 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:05:42,681 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:05:42,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-31 10:05:42,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:05:42,896 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:05:42,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:05:42,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1849148123, now seen corresponding path program 1 times [2022-01-31 10:05:42,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:05:42,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116283108] [2022-01-31 10:05:42,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:05:42,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:05:42,913 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:05:42,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [507579951] [2022-01-31 10:05:42,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:05:42,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:05:42,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:05:42,914 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) [2022-01-31 10:05:42,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-31 10:05:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:05:42,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-31 10:05:42,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:05:43,115 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-31 10:05:43,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 10:05:43,367 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-31 10:05:43,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:05:43,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116283108] [2022-01-31 10:05:43,369 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:05:43,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507579951] [2022-01-31 10:05:43,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507579951] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 10:05:43,370 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-31 10:05:43,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2022-01-31 10:05:43,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964513972] [2022-01-31 10:05:43,370 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-31 10:05:43,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-31 10:05:43,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:05:43,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-31 10:05:43,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-31 10:05:43,372 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 10:05:43,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:05:43,528 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2022-01-31 10:05:43,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-31 10:05:43,529 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2022-01-31 10:05:43,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:05:43,530 INFO L225 Difference]: With dead ends: 73 [2022-01-31 10:05:43,530 INFO L226 Difference]: Without dead ends: 73 [2022-01-31 10:05:43,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-01-31 10:05:43,531 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 57 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 10:05:43,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 147 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 10:05:43,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-01-31 10:05:43,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 46. [2022-01-31 10:05:43,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 states have internal predecessors, (41), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 10:05:43,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2022-01-31 10:05:43,535 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 33 [2022-01-31 10:05:43,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:05:43,536 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2022-01-31 10:05:43,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 10:05:43,536 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-01-31 10:05:43,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-31 10:05:43,536 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:05:43,536 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:05:43,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-31 10:05:43,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-31 10:05:43,737 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:05:43,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:05:43,738 INFO L85 PathProgramCache]: Analyzing trace with hash 648867814, now seen corresponding path program 1 times [2022-01-31 10:05:43,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:05:43,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695414466] [2022-01-31 10:05:43,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:05:43,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:05:43,754 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:05:43,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698079282] [2022-01-31 10:05:43,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:05:43,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:05:43,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:05:43,755 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:05:43,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-31 10:05:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 10:05:43,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 43 conjunts are in the unsatisfiable core [2022-01-31 10:05:43,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:05:43,861 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-31 10:05:43,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:05:43,886 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2022-01-31 10:05:43,890 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-31 10:05:44,294 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 55 [2022-01-31 10:05:44,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:05:44,301 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 48 [2022-01-31 10:05:44,354 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 11 [2022-01-31 10:05:44,531 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 134 [2022-01-31 10:05:44,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 10:05:44,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:05:44,539 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 88 [2022-01-31 10:05:44,560 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-31 10:05:44,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:05:44,596 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 32 [2022-01-31 10:05:44,764 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 10:05:44,765 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2022-01-31 10:05:44,899 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 10:05:44,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 10:08:22,279 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse26 (<= (mod c_main_~index~0 4294967296) 2147483647))) (and (or (and (forall ((main_~num~0 Int) (v_ArrVal_93 Int)) (let ((.cse6 (* 4 (mod c_main_~index~0 4294967296))) (.cse4 (mod (* main_~num~0 (* (* main_~num~0 (* c_main_~index~0 main_~num~0)) main_~num~0)) 4294967296))) (let ((.cse1 (store |c_#memory_int| |c_main_~#array1~0.base| (store (select |c_#memory_int| |c_main_~#array1~0.base|) (+ (- 17179869184) .cse6 |c_main_~#array1~0.offset|) .cse4)))) (let ((.cse2 (select .cse1 |c_main_~#array2~0.base|)) (.cse3 (+ (- 17179869184) |c_main_~#array2~0.offset| .cse6))) (let ((.cse5 (mod (select .cse2 .cse3) 4294967296))) (or (<= (let ((.cse0 (store .cse2 .cse3 v_ArrVal_93))) (+ (select .cse0 |c_main_~#array2~0.offset|) (select (select (store .cse1 |c_main_~#array2~0.base| .cse0) |c_main_~#array1~0.base|) |c_main_~#array1~0.offset|) c_main_~sum~0)) (div (+ (- 1) c_~ARR_SIZE~0 (* c_~ARR_SIZE~0 c_~ARR_SIZE~0)) 4)) (not (<= .cse4 2147483647)) (not (<= v_ArrVal_93 .cse5)) (not (<= .cse5 2147483647)))))))) (forall ((main_~num~0 Int) (v_ArrVal_93 Int)) (let ((.cse12 (* 4 (mod c_main_~index~0 4294967296))) (.cse9 (mod (* main_~num~0 (* (* main_~num~0 (* c_main_~index~0 main_~num~0)) main_~num~0)) 4294967296))) (let ((.cse11 (store |c_#memory_int| |c_main_~#array1~0.base| (store (select |c_#memory_int| |c_main_~#array1~0.base|) (+ (- 17179869184) .cse12 |c_main_~#array1~0.offset|) (+ .cse9 (- 4294967296)))))) (let ((.cse7 (select .cse11 |c_main_~#array2~0.base|)) (.cse8 (+ (- 17179869184) |c_main_~#array2~0.offset| .cse12))) (or (not (<= (+ 4294967296 v_ArrVal_93) (mod (select .cse7 .cse8) 4294967296))) (<= .cse9 2147483647) (<= (let ((.cse10 (store .cse7 .cse8 v_ArrVal_93))) (+ (select .cse10 |c_main_~#array2~0.offset|) (select (select (store .cse11 |c_main_~#array2~0.base| .cse10) |c_main_~#array1~0.base|) |c_main_~#array1~0.offset|) c_main_~sum~0)) (div (+ (- 1) c_~ARR_SIZE~0 (* c_~ARR_SIZE~0 c_~ARR_SIZE~0)) 4))))))) (forall ((main_~num~0 Int) (v_ArrVal_93 Int)) (let ((.cse18 (* 4 (mod c_main_~index~0 4294967296))) (.cse17 (mod (* main_~num~0 (* (* main_~num~0 (* c_main_~index~0 main_~num~0)) main_~num~0)) 4294967296))) (let ((.cse14 (store |c_#memory_int| |c_main_~#array1~0.base| (store (select |c_#memory_int| |c_main_~#array1~0.base|) (+ (- 17179869184) .cse18 |c_main_~#array1~0.offset|) .cse17)))) (let ((.cse15 (select .cse14 |c_main_~#array2~0.base|)) (.cse16 (+ (- 17179869184) |c_main_~#array2~0.offset| .cse18))) (or (<= (let ((.cse13 (store .cse15 .cse16 v_ArrVal_93))) (+ (select .cse13 |c_main_~#array2~0.offset|) (select (select (store .cse14 |c_main_~#array2~0.base| .cse13) |c_main_~#array1~0.base|) |c_main_~#array1~0.offset|) c_main_~sum~0)) (div (+ (- 1) c_~ARR_SIZE~0 (* c_~ARR_SIZE~0 c_~ARR_SIZE~0)) 4)) (not (<= .cse17 2147483647)) (not (<= (+ 4294967296 v_ArrVal_93) (mod (select .cse15 .cse16) 4294967296)))))))) (forall ((main_~num~0 Int) (v_ArrVal_93 Int)) (let ((.cse25 (* 4 (mod c_main_~index~0 4294967296))) (.cse20 (mod (* main_~num~0 (* (* main_~num~0 (* c_main_~index~0 main_~num~0)) main_~num~0)) 4294967296))) (let ((.cse22 (store |c_#memory_int| |c_main_~#array1~0.base| (store (select |c_#memory_int| |c_main_~#array1~0.base|) (+ (- 17179869184) .cse25 |c_main_~#array1~0.offset|) (+ .cse20 (- 4294967296)))))) (let ((.cse23 (select .cse22 |c_main_~#array2~0.base|)) (.cse24 (+ (- 17179869184) |c_main_~#array2~0.offset| .cse25))) (let ((.cse19 (mod (select .cse23 .cse24) 4294967296))) (or (not (<= .cse19 2147483647)) (<= .cse20 2147483647) (not (<= v_ArrVal_93 .cse19)) (<= (let ((.cse21 (store .cse23 .cse24 v_ArrVal_93))) (+ (select .cse21 |c_main_~#array2~0.offset|) (select (select (store .cse22 |c_main_~#array2~0.base| .cse21) |c_main_~#array1~0.base|) |c_main_~#array1~0.offset|) c_main_~sum~0)) (div (+ (- 1) c_~ARR_SIZE~0 (* c_~ARR_SIZE~0 c_~ARR_SIZE~0)) 4))))))))) .cse26) (or (and (forall ((main_~num~0 Int) (v_ArrVal_93 Int)) (let ((.cse32 (* 4 (mod c_main_~index~0 4294967296))) (.cse29 (mod (* main_~num~0 (* (* main_~num~0 (* c_main_~index~0 main_~num~0)) main_~num~0)) 4294967296))) (let ((.cse31 (store |c_#memory_int| |c_main_~#array1~0.base| (store (select |c_#memory_int| |c_main_~#array1~0.base|) (+ .cse32 |c_main_~#array1~0.offset|) .cse29)))) (let ((.cse27 (select .cse31 |c_main_~#array2~0.base|)) (.cse28 (+ |c_main_~#array2~0.offset| .cse32))) (or (not (<= (+ 4294967296 v_ArrVal_93) (mod (select .cse27 .cse28) 4294967296))) (not (<= .cse29 2147483647)) (<= (let ((.cse30 (store .cse27 .cse28 v_ArrVal_93))) (+ (select .cse30 |c_main_~#array2~0.offset|) (select (select (store .cse31 |c_main_~#array2~0.base| .cse30) |c_main_~#array1~0.base|) |c_main_~#array1~0.offset|) c_main_~sum~0)) (div (+ (- 1) c_~ARR_SIZE~0 (* c_~ARR_SIZE~0 c_~ARR_SIZE~0)) 4))))))) (forall ((main_~num~0 Int) (v_ArrVal_93 Int)) (let ((.cse38 (* 4 (mod c_main_~index~0 4294967296))) (.cse37 (mod (* main_~num~0 (* (* main_~num~0 (* c_main_~index~0 main_~num~0)) main_~num~0)) 4294967296))) (let ((.cse33 (store |c_#memory_int| |c_main_~#array1~0.base| (store (select |c_#memory_int| |c_main_~#array1~0.base|) (+ .cse38 |c_main_~#array1~0.offset|) (+ .cse37 (- 4294967296)))))) (let ((.cse35 (select .cse33 |c_main_~#array2~0.base|)) (.cse36 (+ |c_main_~#array2~0.offset| .cse38))) (or (<= (let ((.cse34 (store .cse35 .cse36 v_ArrVal_93))) (+ (select (select (store .cse33 |c_main_~#array2~0.base| .cse34) |c_main_~#array1~0.base|) |c_main_~#array1~0.offset|) (select .cse34 |c_main_~#array2~0.offset|) c_main_~sum~0)) (div (+ (- 1) c_~ARR_SIZE~0 (* c_~ARR_SIZE~0 c_~ARR_SIZE~0)) 4)) (<= .cse37 2147483647) (not (<= (+ 4294967296 v_ArrVal_93) (mod (select .cse35 .cse36) 4294967296)))))))) (forall ((main_~num~0 Int) (v_ArrVal_93 Int)) (let ((.cse45 (* 4 (mod c_main_~index~0 4294967296))) (.cse40 (mod (* main_~num~0 (* (* main_~num~0 (* c_main_~index~0 main_~num~0)) main_~num~0)) 4294967296))) (let ((.cse42 (store |c_#memory_int| |c_main_~#array1~0.base| (store (select |c_#memory_int| |c_main_~#array1~0.base|) (+ .cse45 |c_main_~#array1~0.offset|) .cse40)))) (let ((.cse43 (select .cse42 |c_main_~#array2~0.base|)) (.cse44 (+ |c_main_~#array2~0.offset| .cse45))) (let ((.cse39 (mod (select .cse43 .cse44) 4294967296))) (or (not (<= v_ArrVal_93 .cse39)) (not (<= .cse40 2147483647)) (not (<= .cse39 2147483647)) (<= (let ((.cse41 (store .cse43 .cse44 v_ArrVal_93))) (+ (select .cse41 |c_main_~#array2~0.offset|) (select (select (store .cse42 |c_main_~#array2~0.base| .cse41) |c_main_~#array1~0.base|) |c_main_~#array1~0.offset|) c_main_~sum~0)) (div (+ (- 1) c_~ARR_SIZE~0 (* c_~ARR_SIZE~0 c_~ARR_SIZE~0)) 4)))))))) (forall ((main_~num~0 Int) (v_ArrVal_93 Int)) (let ((.cse52 (* 4 (mod c_main_~index~0 4294967296))) (.cse51 (mod (* main_~num~0 (* (* main_~num~0 (* c_main_~index~0 main_~num~0)) main_~num~0)) 4294967296))) (let ((.cse46 (store |c_#memory_int| |c_main_~#array1~0.base| (store (select |c_#memory_int| |c_main_~#array1~0.base|) (+ .cse52 |c_main_~#array1~0.offset|) (+ .cse51 (- 4294967296)))))) (let ((.cse48 (select .cse46 |c_main_~#array2~0.base|)) (.cse49 (+ |c_main_~#array2~0.offset| .cse52))) (let ((.cse50 (mod (select .cse48 .cse49) 4294967296))) (or (<= (let ((.cse47 (store .cse48 .cse49 v_ArrVal_93))) (+ (select (select (store .cse46 |c_main_~#array2~0.base| .cse47) |c_main_~#array1~0.base|) |c_main_~#array1~0.offset|) (select .cse47 |c_main_~#array2~0.offset|) c_main_~sum~0)) (div (+ (- 1) c_~ARR_SIZE~0 (* c_~ARR_SIZE~0 c_~ARR_SIZE~0)) 4)) (not (<= v_ArrVal_93 .cse50)) (not (<= .cse50 2147483647)) (<= .cse51 2147483647)))))))) (not .cse26)))) is different from true [2022-01-31 10:11:09,923 WARN L228 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 41 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-01-31 10:11:25,649 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((aux_div_main_~index~0_30 Int) (aux_mod_main_~index~0_30 Int)) (let ((.cse0 (+ aux_mod_main_~index~0_30 (* aux_div_main_~index~0_30 4294967296)))) (or (< 2147483647 aux_mod_main_~index~0_30) (<= c_~ARR_SIZE~0 .cse0) (and (forall ((main_~num~0 Int) (v_ArrVal_93 Int)) (let ((.cse7 (* (mod aux_mod_main_~index~0_30 4294967296) 4)) (.cse2 (mod (* main_~num~0 (* main_~num~0 (* main_~num~0 (* (+ aux_mod_main_~index~0_30 (* aux_div_main_~index~0_30 4294967296)) main_~num~0)))) 4294967296))) (let ((.cse4 (store |c_#memory_int| |c_main_~#array1~0.base| (store (select |c_#memory_int| |c_main_~#array1~0.base|) (+ .cse7 |c_main_~#array1~0.offset|) .cse2)))) (let ((.cse5 (select .cse4 |c_main_~#array2~0.base|)) (.cse6 (+ |c_main_~#array2~0.offset| .cse7))) (let ((.cse1 (mod (select .cse5 .cse6) 4294967296))) (or (not (<= v_ArrVal_93 .cse1)) (not (<= .cse1 2147483647)) (not (<= .cse2 2147483647)) (<= (let ((.cse3 (store .cse5 .cse6 v_ArrVal_93))) (+ (select .cse3 |c_main_~#array2~0.offset|) (select (select (store .cse4 |c_main_~#array2~0.base| .cse3) |c_main_~#array1~0.base|) |c_main_~#array1~0.offset|) c_main_~sum~0)) (div (+ (- 1) c_~ARR_SIZE~0 (* c_~ARR_SIZE~0 c_~ARR_SIZE~0)) 4)))))))) (forall ((main_~num~0 Int) (v_ArrVal_93 Int)) (let ((.cse13 (* (mod aux_mod_main_~index~0_30 4294967296) 4)) (.cse12 (mod (* main_~num~0 (* main_~num~0 (* main_~num~0 (* (+ aux_mod_main_~index~0_30 (* aux_div_main_~index~0_30 4294967296)) main_~num~0)))) 4294967296))) (let ((.cse10 (store |c_#memory_int| |c_main_~#array1~0.base| (store (select |c_#memory_int| |c_main_~#array1~0.base|) (+ .cse13 |c_main_~#array1~0.offset|) (+ .cse12 (- 4294967296)))))) (let ((.cse8 (select .cse10 |c_main_~#array2~0.base|)) (.cse9 (+ |c_main_~#array2~0.offset| .cse13))) (or (not (<= (+ 4294967296 v_ArrVal_93) (mod (select .cse8 .cse9) 4294967296))) (<= (let ((.cse11 (store .cse8 .cse9 v_ArrVal_93))) (+ (select (select (store .cse10 |c_main_~#array2~0.base| .cse11) |c_main_~#array1~0.base|) |c_main_~#array1~0.offset|) c_main_~sum~0 (select .cse11 |c_main_~#array2~0.offset|))) (div (+ (- 1) c_~ARR_SIZE~0 (* c_~ARR_SIZE~0 c_~ARR_SIZE~0)) 4)) (<= .cse12 2147483647)))))) (forall ((main_~num~0 Int) (v_ArrVal_93 Int)) (let ((.cse20 (* (mod aux_mod_main_~index~0_30 4294967296) 4)) (.cse18 (mod (* main_~num~0 (* main_~num~0 (* main_~num~0 (* (+ aux_mod_main_~index~0_30 (* aux_div_main_~index~0_30 4294967296)) main_~num~0)))) 4294967296))) (let ((.cse14 (store |c_#memory_int| |c_main_~#array1~0.base| (store (select |c_#memory_int| |c_main_~#array1~0.base|) (+ .cse20 |c_main_~#array1~0.offset|) (+ .cse18 (- 4294967296)))))) (let ((.cse16 (select .cse14 |c_main_~#array2~0.base|)) (.cse17 (+ |c_main_~#array2~0.offset| .cse20))) (let ((.cse19 (mod (select .cse16 .cse17) 4294967296))) (or (<= (let ((.cse15 (store .cse16 .cse17 v_ArrVal_93))) (+ (select (select (store .cse14 |c_main_~#array2~0.base| .cse15) |c_main_~#array1~0.base|) |c_main_~#array1~0.offset|) c_main_~sum~0 (select .cse15 |c_main_~#array2~0.offset|))) (div (+ (- 1) c_~ARR_SIZE~0 (* c_~ARR_SIZE~0 c_~ARR_SIZE~0)) 4)) (<= .cse18 2147483647) (not (<= .cse19 2147483647)) (not (<= v_ArrVal_93 .cse19)))))))) (forall ((main_~num~0 Int) (v_ArrVal_93 Int)) (let ((.cse26 (* (mod aux_mod_main_~index~0_30 4294967296) 4)) (.cse21 (mod (* main_~num~0 (* main_~num~0 (* main_~num~0 (* (+ aux_mod_main_~index~0_30 (* aux_div_main_~index~0_30 4294967296)) main_~num~0)))) 4294967296))) (let ((.cse23 (store |c_#memory_int| |c_main_~#array1~0.base| (store (select |c_#memory_int| |c_main_~#array1~0.base|) (+ .cse26 |c_main_~#array1~0.offset|) .cse21)))) (let ((.cse24 (select .cse23 |c_main_~#array2~0.base|)) (.cse25 (+ |c_main_~#array2~0.offset| .cse26))) (or (not (<= .cse21 2147483647)) (<= (let ((.cse22 (store .cse24 .cse25 v_ArrVal_93))) (+ (select .cse22 |c_main_~#array2~0.offset|) (select (select (store .cse23 |c_main_~#array2~0.base| .cse22) |c_main_~#array1~0.base|) |c_main_~#array1~0.offset|) c_main_~sum~0)) (div (+ (- 1) c_~ARR_SIZE~0 (* c_~ARR_SIZE~0 c_~ARR_SIZE~0)) 4)) (not (<= (+ 4294967296 v_ArrVal_93) (mod (select .cse24 .cse25) 4294967296))))))))) (< .cse0 0) (< aux_mod_main_~index~0_30 0)))) (forall ((aux_div_main_~index~0_30 Int) (aux_mod_main_~index~0_30 Int)) (let ((.cse27 (+ aux_mod_main_~index~0_30 (* aux_div_main_~index~0_30 4294967296)))) (or (<= c_~ARR_SIZE~0 .cse27) (and (forall ((main_~num~0 Int) (v_ArrVal_93 Int)) (let ((.cse33 (* (mod aux_mod_main_~index~0_30 4294967296) 4)) (.cse28 (mod (* main_~num~0 (* main_~num~0 (* main_~num~0 (* (+ aux_mod_main_~index~0_30 (* aux_div_main_~index~0_30 4294967296)) main_~num~0)))) 4294967296))) (let ((.cse31 (store |c_#memory_int| |c_main_~#array1~0.base| (store (select |c_#memory_int| |c_main_~#array1~0.base|) (+ (- 17179869184) .cse33 |c_main_~#array1~0.offset|) .cse28)))) (let ((.cse29 (select .cse31 |c_main_~#array2~0.base|)) (.cse30 (+ (- 17179869184) |c_main_~#array2~0.offset| .cse33))) (or (not (<= .cse28 2147483647)) (not (<= (+ 4294967296 v_ArrVal_93) (mod (select .cse29 .cse30) 4294967296))) (<= (let ((.cse32 (store .cse29 .cse30 v_ArrVal_93))) (+ (select (select (store .cse31 |c_main_~#array2~0.base| .cse32) |c_main_~#array1~0.base|) |c_main_~#array1~0.offset|) (select .cse32 |c_main_~#array2~0.offset|) c_main_~sum~0)) (div (+ (- 1) c_~ARR_SIZE~0 (* c_~ARR_SIZE~0 c_~ARR_SIZE~0)) 4))))))) (forall ((main_~num~0 Int) (v_ArrVal_93 Int)) (let ((.cse40 (* (mod aux_mod_main_~index~0_30 4294967296) 4)) (.cse35 (mod (* main_~num~0 (* main_~num~0 (* main_~num~0 (* (+ aux_mod_main_~index~0_30 (* aux_div_main_~index~0_30 4294967296)) main_~num~0)))) 4294967296))) (let ((.cse37 (store |c_#memory_int| |c_main_~#array1~0.base| (store (select |c_#memory_int| |c_main_~#array1~0.base|) (+ (- 17179869184) .cse40 |c_main_~#array1~0.offset|) (+ .cse35 (- 4294967296)))))) (let ((.cse38 (select .cse37 |c_main_~#array2~0.base|)) (.cse39 (+ (- 17179869184) |c_main_~#array2~0.offset| .cse40))) (let ((.cse34 (mod (select .cse38 .cse39) 4294967296))) (or (not (<= .cse34 2147483647)) (<= .cse35 2147483647) (not (<= v_ArrVal_93 .cse34)) (<= (let ((.cse36 (store .cse38 .cse39 v_ArrVal_93))) (+ (select .cse36 |c_main_~#array2~0.offset|) (select (select (store .cse37 |c_main_~#array2~0.base| .cse36) |c_main_~#array1~0.base|) |c_main_~#array1~0.offset|) c_main_~sum~0)) (div (+ (- 1) c_~ARR_SIZE~0 (* c_~ARR_SIZE~0 c_~ARR_SIZE~0)) 4)))))))) (forall ((main_~num~0 Int) (v_ArrVal_93 Int)) (let ((.cse46 (* (mod aux_mod_main_~index~0_30 4294967296) 4)) (.cse41 (mod (* main_~num~0 (* main_~num~0 (* main_~num~0 (* (+ aux_mod_main_~index~0_30 (* aux_div_main_~index~0_30 4294967296)) main_~num~0)))) 4294967296))) (let ((.cse45 (store |c_#memory_int| |c_main_~#array1~0.base| (store (select |c_#memory_int| |c_main_~#array1~0.base|) (+ (- 17179869184) .cse46 |c_main_~#array1~0.offset|) (+ .cse41 (- 4294967296)))))) (let ((.cse42 (select .cse45 |c_main_~#array2~0.base|)) (.cse43 (+ (- 17179869184) |c_main_~#array2~0.offset| .cse46))) (or (<= .cse41 2147483647) (not (<= (+ 4294967296 v_ArrVal_93) (mod (select .cse42 .cse43) 4294967296))) (<= (let ((.cse44 (store .cse42 .cse43 v_ArrVal_93))) (+ (select .cse44 |c_main_~#array2~0.offset|) (select (select (store .cse45 |c_main_~#array2~0.base| .cse44) |c_main_~#array1~0.base|) |c_main_~#array1~0.offset|) c_main_~sum~0)) (div (+ (- 1) c_~ARR_SIZE~0 (* c_~ARR_SIZE~0 c_~ARR_SIZE~0)) 4))))))) (forall ((main_~num~0 Int) (v_ArrVal_93 Int)) (let ((.cse53 (* (mod aux_mod_main_~index~0_30 4294967296) 4)) (.cse47 (mod (* main_~num~0 (* main_~num~0 (* main_~num~0 (* (+ aux_mod_main_~index~0_30 (* aux_div_main_~index~0_30 4294967296)) main_~num~0)))) 4294967296))) (let ((.cse48 (store |c_#memory_int| |c_main_~#array1~0.base| (store (select |c_#memory_int| |c_main_~#array1~0.base|) (+ (- 17179869184) .cse53 |c_main_~#array1~0.offset|) .cse47)))) (let ((.cse50 (select .cse48 |c_main_~#array2~0.base|)) (.cse51 (+ (- 17179869184) |c_main_~#array2~0.offset| .cse53))) (let ((.cse52 (mod (select .cse50 .cse51) 4294967296))) (or (not (<= .cse47 2147483647)) (<= (let ((.cse49 (store .cse50 .cse51 v_ArrVal_93))) (+ (select (select (store .cse48 |c_main_~#array2~0.base| .cse49) |c_main_~#array1~0.base|) |c_main_~#array1~0.offset|) (select .cse49 |c_main_~#array2~0.offset|) c_main_~sum~0)) (div (+ (- 1) c_~ARR_SIZE~0 (* c_~ARR_SIZE~0 c_~ARR_SIZE~0)) 4)) (not (<= .cse52 2147483647)) (not (<= v_ArrVal_93 .cse52))))))))) (< .cse27 0) (<= aux_mod_main_~index~0_30 2147483647) (<= 4294967296 aux_mod_main_~index~0_30))))) is different from true [2022-01-31 10:11:25,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:11:25,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695414466] [2022-01-31 10:11:25,666 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:11:25,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698079282] [2022-01-31 10:11:25,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698079282] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 10:11:25,666 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-01-31 10:11:25,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2022-01-31 10:11:25,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629369559] [2022-01-31 10:11:25,666 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-01-31 10:11:25,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-31 10:11:25,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:11:25,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-31 10:11:25,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=381, Unknown=2, NotChecked=82, Total=552 [2022-01-31 10:11:25,668 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand has 17 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 14 states have internal predecessors, (25), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 10:11:25,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:11:25,854 INFO L93 Difference]: Finished difference Result 66 states and 73 transitions. [2022-01-31 10:11:25,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-31 10:11:25,854 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 14 states have internal predecessors, (25), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2022-01-31 10:11:25,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:11:25,856 INFO L225 Difference]: With dead ends: 66 [2022-01-31 10:11:25,856 INFO L226 Difference]: Without dead ends: 63 [2022-01-31 10:11:25,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=103, Invalid=503, Unknown=2, NotChecked=94, Total=702 [2022-01-31 10:11:25,857 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 18 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 10:11:25,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 189 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 41 Unchecked, 0.0s Time] [2022-01-31 10:11:25,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-01-31 10:11:25,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2022-01-31 10:11:25,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 47 states have (on average 1.148936170212766) internal successors, (54), 48 states have internal predecessors, (54), 8 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 10:11:25,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2022-01-31 10:11:25,866 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 33 [2022-01-31 10:11:25,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:11:25,866 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2022-01-31 10:11:25,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 14 states have internal predecessors, (25), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 10:11:25,866 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2022-01-31 10:11:25,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-31 10:11:25,867 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:11:25,867 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:11:25,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-31 10:11:26,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:11:26,076 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:11:26,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:11:26,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1700215011, now seen corresponding path program 2 times [2022-01-31 10:11:26,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:11:26,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208653080] [2022-01-31 10:11:26,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:11:26,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:11:26,090 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:11:26,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [212376545] [2022-01-31 10:11:26,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-31 10:11:26,091 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:11:26,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:11:26,095 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:11:26,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-31 10:11:26,146 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-31 10:11:26,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 10:11:26,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-31 10:11:26,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:11:26,225 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 10:11:26,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 10:11:26,282 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-31 10:11:26,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:11:26,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208653080] [2022-01-31 10:11:26,282 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:11:26,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212376545] [2022-01-31 10:11:26,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212376545] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 10:11:26,283 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-31 10:11:26,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-01-31 10:11:26,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339693365] [2022-01-31 10:11:26,283 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-31 10:11:26,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-31 10:11:26,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:11:26,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-31 10:11:26,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 10:11:26,284 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 10:11:26,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:11:26,368 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2022-01-31 10:11:26,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-31 10:11:26,369 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2022-01-31 10:11:26,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:11:26,369 INFO L225 Difference]: With dead ends: 76 [2022-01-31 10:11:26,369 INFO L226 Difference]: Without dead ends: 72 [2022-01-31 10:11:26,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-01-31 10:11:26,370 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 38 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 10:11:26,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 133 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 10:11:26,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-01-31 10:11:26,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 62. [2022-01-31 10:11:26,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 48 states have (on average 1.125) internal successors, (54), 49 states have internal predecessors, (54), 8 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 10:11:26,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2022-01-31 10:11:26,375 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 35 [2022-01-31 10:11:26,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:11:26,375 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2022-01-31 10:11:26,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 10:11:26,375 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2022-01-31 10:11:26,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-31 10:11:26,376 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:11:26,376 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:11:26,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-31 10:11:26,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:11:26,591 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:11:26,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:11:26,592 INFO L85 PathProgramCache]: Analyzing trace with hash 520449855, now seen corresponding path program 2 times [2022-01-31 10:11:26,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:11:26,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050565942] [2022-01-31 10:11:26,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:11:26,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:11:26,613 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:11:26,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [545004506] [2022-01-31 10:11:26,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-31 10:11:26,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:11:26,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:11:26,616 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:11:26,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-31 10:11:26,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-31 10:11:26,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 10:11:26,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-31 10:11:26,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:11:26,734 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 10:11:26,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 10:11:26,786 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-31 10:11:26,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:11:26,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050565942] [2022-01-31 10:11:26,787 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:11:26,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545004506] [2022-01-31 10:11:26,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545004506] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 10:11:26,787 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-31 10:11:26,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-01-31 10:11:26,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490010079] [2022-01-31 10:11:26,787 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-31 10:11:26,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-31 10:11:26,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:11:26,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-31 10:11:26,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-31 10:11:26,789 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 10:11:26,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:11:26,860 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2022-01-31 10:11:26,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-31 10:11:26,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2022-01-31 10:11:26,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:11:26,861 INFO L225 Difference]: With dead ends: 70 [2022-01-31 10:11:26,861 INFO L226 Difference]: Without dead ends: 70 [2022-01-31 10:11:26,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-01-31 10:11:26,862 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 30 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-31 10:11:26,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 153 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-31 10:11:26,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-01-31 10:11:26,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 64. [2022-01-31 10:11:26,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 50 states have (on average 1.12) internal successors, (56), 51 states have internal predecessors, (56), 8 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 10:11:26,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2022-01-31 10:11:26,869 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 35 [2022-01-31 10:11:26,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:11:26,869 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2022-01-31 10:11:26,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-01-31 10:11:26,869 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2022-01-31 10:11:26,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-31 10:11:26,870 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:11:26,870 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:11:26,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-31 10:11:27,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:11:27,074 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:11:27,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:11:27,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1450359300, now seen corresponding path program 3 times [2022-01-31 10:11:27,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:11:27,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901157325] [2022-01-31 10:11:27,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:11:27,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:11:27,088 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:11:27,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [7816855] [2022-01-31 10:11:27,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-31 10:11:27,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:11:27,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:11:27,093 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:11:27,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-31 10:11:27,365 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-01-31 10:11:27,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 10:11:27,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 55 conjunts are in the unsatisfiable core [2022-01-31 10:11:27,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:11:27,406 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-31 10:11:27,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:11:27,430 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-01-31 10:11:27,434 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-01-31 10:11:27,436 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-01-31 10:11:27,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:11:27,486 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 41 [2022-01-31 10:11:27,489 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-01-31 10:11:27,502 INFO L353 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-01-31 10:11:27,503 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2022-01-31 10:11:27,513 INFO L353 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-01-31 10:11:27,514 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2022-01-31 10:11:27,975 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 65 [2022-01-31 10:11:27,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:11:27,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:11:28,010 INFO L353 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-01-31 10:11:28,011 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 81 [2022-01-31 10:11:28,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:11:28,024 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 27 [2022-01-31 10:11:28,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:11:28,052 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 32 [2022-01-31 10:11:28,308 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 69 [2022-01-31 10:11:28,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:11:28,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:11:28,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:11:28,326 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 61 [2022-01-31 10:11:28,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:11:28,386 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 20 [2022-01-31 10:11:29,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:11:29,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:11:29,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:11:29,396 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 10:11:29,396 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 52 [2022-01-31 10:11:30,523 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 10:11:30,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 10:14:23,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 10:14:23,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901157325] [2022-01-31 10:14:23,767 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-31 10:14:23,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7816855] [2022-01-31 10:14:23,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7816855] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 10:14:23,767 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-01-31 10:14:23,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2022-01-31 10:14:23,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086115044] [2022-01-31 10:14:23,768 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-01-31 10:14:23,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-31 10:14:23,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 10:14:23,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-31 10:14:23,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1016, Unknown=3, NotChecked=0, Total=1190 [2022-01-31 10:14:23,769 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand has 24 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 21 states have internal predecessors, (29), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 10:14:25,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 10:14:25,223 INFO L93 Difference]: Finished difference Result 90 states and 98 transitions. [2022-01-31 10:14:25,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-31 10:14:25,224 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 21 states have internal predecessors, (29), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 37 [2022-01-31 10:14:25,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 10:14:25,224 INFO L225 Difference]: With dead ends: 90 [2022-01-31 10:14:25,224 INFO L226 Difference]: Without dead ends: 87 [2022-01-31 10:14:25,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=283, Invalid=1436, Unknown=3, NotChecked=0, Total=1722 [2022-01-31 10:14:25,225 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 49 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 145 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 10:14:25,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 213 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 81 Invalid, 0 Unknown, 145 Unchecked, 0.1s Time] [2022-01-31 10:14:25,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-01-31 10:14:25,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 75. [2022-01-31 10:14:25,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 60 states have (on average 1.1333333333333333) internal successors, (68), 60 states have internal predecessors, (68), 8 states have call successors, (8), 8 states have call predecessors, (8), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 10:14:25,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2022-01-31 10:14:25,230 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 37 [2022-01-31 10:14:25,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 10:14:25,230 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2022-01-31 10:14:25,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 21 states have internal predecessors, (29), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 10:14:25,230 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2022-01-31 10:14:25,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-31 10:14:25,236 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 10:14:25,236 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 10:14:25,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-31 10:14:25,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:14:25,442 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 10:14:25,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 10:14:25,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1743762307, now seen corresponding path program 3 times [2022-01-31 10:14:25,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 10:14:25,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112689426] [2022-01-31 10:14:25,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 10:14:25,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 10:14:25,454 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-31 10:14:25,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2038557447] [2022-01-31 10:14:25,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-31 10:14:25,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 10:14:25,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 10:14:25,459 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 10:14:25,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-31 10:14:25,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-01-31 10:14:25,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-31 10:14:25,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 57 conjunts are in the unsatisfiable core [2022-01-31 10:14:25,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 10:14:25,613 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-31 10:14:25,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:14:25,628 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2022-01-31 10:14:25,631 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-31 10:14:25,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 10:14:25,679 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2022-01-31 10:14:25,683 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-31 10:14:25,695 INFO L353 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-01-31 10:14:25,695 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 42 [2022-01-31 10:14:38,275 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |main_~#array2~0.base| |v_main_~#array2~0.base_BEFORE_CALL_3|) [2022-01-31 10:14:39,138 INFO L244 Elim1Store]: Index analysis took 2864 ms [2022-01-31 10:14:39,389 INFO L353 Elim1Store]: treesize reduction 36, result has 49.3 percent of original size [2022-01-31 10:14:39,389 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 118 treesize of output 140