/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-lit/gsv2008.c.i.p+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 03:29:58,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 03:29:58,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 03:29:58,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 03:29:58,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 03:29:58,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 03:29:58,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 03:29:58,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 03:29:58,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 03:29:58,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 03:29:58,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 03:29:58,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 03:29:58,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 03:29:58,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 03:29:58,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 03:29:58,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 03:29:58,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 03:29:58,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 03:29:58,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 03:29:58,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 03:29:58,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 03:29:58,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 03:29:58,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 03:29:58,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 03:29:58,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-01 03:29:58,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-01 03:29:58,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-01 03:29:58,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-01 03:29:58,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-01 03:29:58,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-01 03:29:58,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-01 03:29:58,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-01 03:29:58,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-01 03:29:58,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-01 03:29:58,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-01 03:29:58,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-01 03:29:58,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-01 03:29:58,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-01 03:29:58,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 03:29:58,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 03:29:58,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 03:29:58,660 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-01 03:29:58,671 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 03:29:58,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 03:29:58,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 03:29:58,674 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 03:29:58,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 03:29:58,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 03:29:58,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 03:29:58,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 03:29:58,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 03:29:58,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 03:29:58,675 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 03:29:58,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 03:29:58,676 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 03:29:58,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 03:29:58,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 03:29:58,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 03:29:58,676 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 03:29:58,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 03:29:58,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 03:29:58,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 03:29:58,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-01 03:29:58,677 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-01 03:29:58,677 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 03:29:58,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 03:29:58,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 03:29:58,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 03:29:58,956 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 03:29:58,956 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 03:29:58,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2021-05-01 03:29:58,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cb3184f3/0c75a1c0947c4bcaaa84ed5bcd570d62/FLAG759da3c22 [2021-05-01 03:29:59,589 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 03:29:59,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2021-05-01 03:29:59,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cb3184f3/0c75a1c0947c4bcaaa84ed5bcd570d62/FLAG759da3c22 [2021-05-01 03:29:59,762 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cb3184f3/0c75a1c0947c4bcaaa84ed5bcd570d62 [2021-05-01 03:29:59,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 03:29:59,765 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-01 03:29:59,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 03:29:59,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 03:29:59,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 03:29:59,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:29:59" (1/1) ... [2021-05-01 03:29:59,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cdf16b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:29:59, skipping insertion in model container [2021-05-01 03:29:59,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:29:59" (1/1) ... [2021-05-01 03:29:59,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 03:29:59,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 03:29:59,897 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2021-05-01 03:29:59,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:29:59,908 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 03:29:59,921 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2021-05-01 03:29:59,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:29:59,936 INFO L208 MainTranslator]: Completed translation [2021-05-01 03:29:59,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:29:59 WrapperNode [2021-05-01 03:29:59,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 03:29:59,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 03:29:59,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 03:29:59,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 03:29:59,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:29:59" (1/1) ... [2021-05-01 03:29:59,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:29:59" (1/1) ... [2021-05-01 03:29:59,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:29:59" (1/1) ... [2021-05-01 03:29:59,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:29:59" (1/1) ... [2021-05-01 03:30:00,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:29:59" (1/1) ... [2021-05-01 03:30:00,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:29:59" (1/1) ... [2021-05-01 03:30:00,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:29:59" (1/1) ... [2021-05-01 03:30:00,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 03:30:00,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 03:30:00,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 03:30:00,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 03:30:00,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:29:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 03:30:00,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 03:30:00,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 03:30:00,079 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 03:30:00,079 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-01 03:30:00,079 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 03:30:00,079 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 03:30:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 03:30:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 03:30:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 03:30:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-01 03:30:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 03:30:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-01 03:30:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 03:30:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 03:30:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 03:30:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 03:30:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 03:30:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 03:30:00,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 03:30:00,340 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 03:30:00,341 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-01 03:30:00,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:30:00 BoogieIcfgContainer [2021-05-01 03:30:00,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 03:30:00,342 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-01 03:30:00,342 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-01 03:30:00,343 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-01 03:30:00,345 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:30:00" (1/1) ... [2021-05-01 03:30:00,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:00,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:30:00,438 INFO L181 rdanLoopAcceleration]: Guard: Formula: (< v_main_~main__x~0_2 0) InVars {main_~main__x~0=v_main_~main__x~0_2} OutVars{main_~main__x~0=v_main_~main__x~0_2} AuxVars[] AssignedVars[] [2021-05-01 03:30:00,520 WARN L240 tifierPushTermWalker]: treesize reduction 10, result has 95.7 percent of original size [2021-05-01 03:30:00,546 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:04,587 WARN L205 SmtUtils]: Spent 4.04 s on a formula simplification that was a NOOP. DAG size: 11 [2021-05-01 03:30:04,591 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:06,621 WARN L205 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 5 [2021-05-01 03:30:06,622 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:08,648 WARN L205 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 3 [2021-05-01 03:30:08,648 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:08,650 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-01 03:30:08,652 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:12,702 WARN L205 SmtUtils]: Spent 4.05 s on a formula simplification that was a NOOP. DAG size: 3 [2021-05-01 03:30:12,702 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:16,734 WARN L205 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 10 [2021-05-01 03:30:16,735 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:18,793 WARN L205 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 3 [2021-05-01 03:30:18,794 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:18,796 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-05-01 03:30:18,816 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:18,825 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:18,835 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:18,850 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:18,857 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:18,868 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:18,873 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:18,877 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:18,881 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:18,885 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:18,890 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:22,936 WARN L205 SmtUtils]: Spent 4.04 s on a formula simplification that was a NOOP. DAG size: 3 [2021-05-01 03:30:22,937 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:27,020 WARN L205 SmtUtils]: Spent 4.08 s on a formula simplification that was a NOOP. DAG size: 7 [2021-05-01 03:30:27,021 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:31,078 WARN L205 SmtUtils]: Spent 4.06 s on a formula simplification that was a NOOP. DAG size: 12 [2021-05-01 03:30:31,079 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:33,145 WARN L205 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 10 [2021-05-01 03:30:33,145 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:33,154 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:33,158 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:37,211 WARN L205 SmtUtils]: Spent 4.05 s on a formula simplification that was a NOOP. DAG size: 5 [2021-05-01 03:30:37,214 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:39,281 WARN L205 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 10 [2021-05-01 03:30:39,281 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:43,412 WARN L205 SmtUtils]: Spent 4.13 s on a formula simplification that was a NOOP. DAG size: 3 [2021-05-01 03:30:43,413 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:43,416 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 03:30:43,424 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:45,599 WARN L205 SmtUtils]: Spent 2.17 s on a formula simplification that was a NOOP. DAG size: 11 [2021-05-01 03:30:45,600 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:45,607 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:45,619 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:45,622 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-01 03:30:49,794 WARN L205 SmtUtils]: Spent 4.17 s on a formula simplification that was a NOOP. DAG size: 9 [2021-05-01 03:30:49,795 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:30:49,798 WARN L245 tifierPushTermWalker]: treesize reduction 10, result has 95.7 percent of original size 222 [2021-05-01 03:31:25,430 WARN L205 SmtUtils]: Spent 35.63 s on a formula simplification that was a NOOP. DAG size: 61 [2021-05-01 03:31:25,433 INFO L1111 elerationTransformer]: Accelerated Formula: (and (< v_main_~main__x~0_2 0) (= v_main_~main__y~0_3 (+ v_main_~main__y~0_4 1)) (= v_main_~main____CPAchecker_TMP_0~0_1 v_main_~main__y~0_4) (= v_main_~main__x~0_1 (+ v_main_~main__x~0_2 v_main_~main__y~0_4))) InVars {main_~main__x~0=v_main_~main__x~0_2, main_~main__y~0=v_main_~main__y~0_4} OutVars{main_~main____CPAchecker_TMP_0~0=v_main_~main____CPAchecker_TMP_0~0_1, main_~main__x~0=v_main_~main__x~0_1, main_~main__y~0=v_main_~main__y~0_3} AuxVars[] AssignedVars[main_~main____CPAchecker_TMP_0~0, main_~main__x~0, main_~main__y~0] with Formula: (let ((.cse2 (* 2 v_itFinHalf_1))) (let ((.cse0 (< v_main_~main__x~0_2 0)) (.cse3 (+ .cse2 v_main_~main__y~0_4)) (.cse4 (forall ((v_itHalf_1 Int)) (or (< (+ v_itHalf_1 (* 2 (* v_itHalf_1 v_itHalf_1)) (* 2 (* v_itHalf_1 v_main_~main__y~0_4)) v_main_~main__x~0_2 v_main_~main__y~0_4) 0) (< v_itFinHalf_1 (+ v_itHalf_1 1)) (< v_itHalf_1 0)))) (.cse5 (* 2 (* v_itFinHalf_1 v_main_~main__y~0_4))) (.cse6 (* 2 (* v_itFinHalf_1 v_itFinHalf_1)))) (or (and (= v_main_~main__y~0_4 v_main_~main__y~0_3) (= v_main_~main____CPAchecker_TMP_0~0_2 v_main_~main____CPAchecker_TMP_0~0_1) (= v_itFinHalf_1 0) (= v_main_~main__x~0_2 v_main_~main__x~0_1) (<= 0 v_main_~main__x~0_2)) (let ((.cse1 (+ .cse5 v_itFinHalf_1 v_main_~main__x~0_2 v_main_~main__y~0_4 .cse6))) (and .cse0 (= .cse1 v_main_~main__x~0_1) (= (+ .cse2 v_main_~main__y~0_4 1) v_main_~main__y~0_3) (forall ((v_itHalf_1 Int)) (or (< v_itFinHalf_1 v_itHalf_1) (< (+ (* 2 (* v_itHalf_1 v_itHalf_1)) (* 2 (* v_itHalf_1 v_main_~main__y~0_4)) v_main_~main__x~0_2) v_itHalf_1) (< v_itHalf_1 1))) (<= 0 v_itFinHalf_1) (<= 0 .cse1) (= v_main_~main____CPAchecker_TMP_0~0_1 .cse3) .cse4)) (let ((.cse7 (+ .cse5 v_main_~main__x~0_2 .cse6))) (and (forall ((v_itHalf_1 Int)) (or (< v_itFinHalf_1 (+ v_itHalf_1 1)) (< (+ (* 2 (* v_itHalf_1 v_itHalf_1)) (* 2 (* v_itHalf_1 v_main_~main__y~0_4)) v_main_~main__x~0_2) v_itHalf_1) (< v_itHalf_1 1))) .cse0 (= .cse3 v_main_~main__y~0_3) (= .cse7 (+ v_itFinHalf_1 v_main_~main__x~0_1)) (<= v_itFinHalf_1 .cse7) (< 0 v_itFinHalf_1) (= .cse3 (+ v_main_~main____CPAchecker_TMP_0~0_1 1)) .cse4))))) InVars {main_~main____CPAchecker_TMP_0~0=v_main_~main____CPAchecker_TMP_0~0_2, main_~main__x~0=v_main_~main__x~0_2, main_~main__y~0=v_main_~main__y~0_4} OutVars{main_~main____CPAchecker_TMP_0~0=v_main_~main____CPAchecker_TMP_0~0_1, main_~main__x~0=v_main_~main__x~0_1, main_~main__y~0=v_main_~main__y~0_3} AuxVars[v_itFinHalf_1] AssignedVars[main_~main____CPAchecker_TMP_0~0, main_~main__x~0, main_~main__y~0] [2021-05-01 03:31:25,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:31:25 BasicIcfg [2021-05-01 03:31:25,439 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-01 03:31:25,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 03:31:25,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 03:31:25,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 03:31:25,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 03:29:59" (1/4) ... [2021-05-01 03:31:25,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cbe94a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:31:25, skipping insertion in model container [2021-05-01 03:31:25,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:29:59" (2/4) ... [2021-05-01 03:31:25,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cbe94a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:31:25, skipping insertion in model container [2021-05-01 03:31:25,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:30:00" (3/4) ... [2021-05-01 03:31:25,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cbe94a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 03:31:25, skipping insertion in model container [2021-05-01 03:31:25,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:31:25" (4/4) ... [2021-05-01 03:31:25,445 INFO L111 eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.cJordan [2021-05-01 03:31:25,449 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-01 03:31:25,453 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 03:31:25,466 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 03:31:25,494 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 03:31:25,495 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-01 03:31:25,495 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-01 03:31:25,495 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 03:31:25,495 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 03:31:25,495 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 03:31:25,495 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 03:31:25,495 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 03:31:25,510 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 03:31:25,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-05-01 03:31:25,515 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:31:25,516 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:31:25,516 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:31:25,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:31:25,521 INFO L82 PathProgramCache]: Analyzing trace with hash 323261602, now seen corresponding path program 1 times [2021-05-01 03:31:25,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:31:25,528 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450558272] [2021-05-01 03:31:25,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:31:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:31:25,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:25,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:25,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:25,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 03:31:25,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:25,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:25,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:31:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:31:25,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:25,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:25,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 03:31:25,764 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:31:25,764 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450558272] [2021-05-01 03:31:25,765 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450558272] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 03:31:25,765 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 03:31:25,765 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 03:31:25,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834636662] [2021-05-01 03:31:25,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 03:31:25,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:31:25,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 03:31:25,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 03:31:25,779 INFO L87 Difference]: Start difference. First operand has 16 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 03:31:25,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:31:25,865 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2021-05-01 03:31:25,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-01 03:31:25,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-05-01 03:31:25,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:31:25,877 INFO L225 Difference]: With dead ends: 19 [2021-05-01 03:31:25,877 INFO L226 Difference]: Without dead ends: 13 [2021-05-01 03:31:25,878 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 70.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-01 03:31:25,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-05-01 03:31:25,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-05-01 03:31:25,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 03:31:25,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-05-01 03:31:25,899 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2021-05-01 03:31:25,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:31:25,900 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-05-01 03:31:25,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 03:31:25,901 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-05-01 03:31:25,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-05-01 03:31:25,901 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:31:25,901 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:31:25,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 03:31:25,902 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:31:25,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:31:25,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1431144312, now seen corresponding path program 1 times [2021-05-01 03:31:25,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:31:25,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063398464] [2021-05-01 03:31:25,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:31:25,928 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-01 03:31:25,928 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [906597448] [2021-05-01 03:31:25,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-01 03:31:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:31:33,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-01 03:31:33,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-01 03:31:33,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:31:33,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:33,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:33,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:33,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:31:33,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 03:31:33,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 03:31:33,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 03:31:33,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 03:31:33,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 03:31:33,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 03:31:33,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 03:31:33,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-05-01 03:31:33,776 INFO L142 QuantifierPusher]: treesize reduction 22, result has 90.6 percent of original size [2021-05-01 03:31:33,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,783 INFO L142 QuantifierPusher]: treesize reduction -1, result has 100.5 percent of original size [2021-05-01 03:31:33,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-05-01 03:31:33,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-05-01 03:31:33,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-05-01 03:31:33,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-05-01 03:31:33,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-05-01 03:31:33,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-05-01 03:31:33,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-05-01 03:31:33,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-05-01 03:31:33,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-05-01 03:31:33,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-05-01 03:31:33,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-05-01 03:31:33,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-05-01 03:31:33,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-05-01 03:31:33,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-01 03:31:33,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 03:31:33,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-05-01 03:31:33,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-05-01 03:31:33,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-01 03:31:33,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-05-01 03:31:33,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-05-01 03:31:33,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-05-01 03:31:33,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-05-01 03:31:33,897 INFO L147 QuantifierPusher]: treesize reduction -8, result has 102.5 percent of original size 328 [2021-05-01 03:31:33,898 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-05-01 03:31:33,904 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,913 INFO L142 QuantifierPusher]: treesize reduction -8, result has 102.4 percent of original size [2021-05-01 03:31:33,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,916 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-05-01 03:31:33,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 03:31:33,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-01 03:31:33,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:31:33,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-05-01 03:31:33,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-05-01 03:31:33,933 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:31:33,933 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063398464] [2021-05-01 03:31:33,933 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-01 03:31:33,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906597448] [2021-05-01 03:31:33,934 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-05-01 03:31:34,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-01 03:31:34,149 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at java.base/java.util.Arrays.stream(Arrays.java:5614) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.AbstractGeneralizedAffineTerm.div(AbstractGeneralizedAffineTerm.java:395) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.constructRhsIntegerQuotient(SolveForSubjectUtils.java:456) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.ExplicitLhsPolynomialRelation.divideByIntegerCoefficient(ExplicitLhsPolynomialRelation.java:224) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.solveForSubjectWithoutTreatableDivMod(SolveForSubjectUtils.java:110) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.solveForSubject(SolveForSubjectUtils.java:82) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.PolynomialRelation.solveForSubject(PolynomialRelation.java:451) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:408) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer$IDerHelper.findBestReplacementSbr(DualJunctionDer.java:312) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer$IDerHelper.tryToEliminateSbr(DualJunctionDer.java:328) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:231) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:182) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:149) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryToEliminate(DualJunctionDer.java:127) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:869) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:835) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:753) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:384) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:316) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.convert(QuantifierPusher.java:227) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.eliminate(QuantifierPusher.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.eliminate(QuantifierPusher.java:166) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.eliminate(QuantifierPusher.java:160) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:465) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:316) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.convert(QuantifierPusher.java:227) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.eliminate(QuantifierPusher.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.eliminate(QuantifierPusher.java:166) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:248) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-05-01 03:31:34,152 INFO L168 Benchmark]: Toolchain (without parser) took 94385.52 ms. Allocated memory is still 202.4 MB. Free memory was 169.0 MB in the beginning and 109.5 MB in the end (delta: 59.5 MB). Peak memory consumption was 60.0 MB. Max. memory is 8.0 GB. [2021-05-01 03:31:34,153 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 202.4 MB. Free memory is still 185.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 03:31:34,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.65 ms. Allocated memory is still 202.4 MB. Free memory was 168.8 MB in the beginning and 158.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-05-01 03:31:34,153 INFO L168 Benchmark]: Boogie Preprocessor took 75.50 ms. Allocated memory is still 202.4 MB. Free memory was 158.6 MB in the beginning and 186.2 MB in the end (delta: -27.6 MB). Peak memory consumption was 4.3 MB. Max. memory is 8.0 GB. [2021-05-01 03:31:34,153 INFO L168 Benchmark]: RCFGBuilder took 327.15 ms. Allocated memory is still 202.4 MB. Free memory was 186.2 MB in the beginning and 172.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-05-01 03:31:34,154 INFO L168 Benchmark]: IcfgTransformer took 85096.77 ms. Allocated memory is still 202.4 MB. Free memory was 172.3 MB in the beginning and 130.8 MB in the end (delta: 41.4 MB). Peak memory consumption was 41.9 MB. Max. memory is 8.0 GB. [2021-05-01 03:31:34,154 INFO L168 Benchmark]: TraceAbstraction took 8709.77 ms. Allocated memory is still 202.4 MB. Free memory was 130.3 MB in the beginning and 109.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.1 MB. Max. memory is 8.0 GB. [2021-05-01 03:31:34,155 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from IcfgTransformer: - StatisticsResult: Jordan loop acceleration statistics 0 HavocedVariables, 3 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {0={1=1}, 1={3=1}}, 0 SequentialAcceleration, 1 AlternatingAcceleration, 0 QuantifierFreeResult * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 202.4 MB. Free memory is still 185.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 169.65 ms. Allocated memory is still 202.4 MB. Free memory was 168.8 MB in the beginning and 158.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 75.50 ms. Allocated memory is still 202.4 MB. Free memory was 158.6 MB in the beginning and 186.2 MB in the end (delta: -27.6 MB). Peak memory consumption was 4.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 327.15 ms. Allocated memory is still 202.4 MB. Free memory was 186.2 MB in the beginning and 172.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * IcfgTransformer took 85096.77 ms. Allocated memory is still 202.4 MB. Free memory was 172.3 MB in the beginning and 130.8 MB in the end (delta: 41.4 MB). Peak memory consumption was 41.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8709.77 ms. Allocated memory is still 202.4 MB. Free memory was 130.3 MB in the beginning and 109.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: java.base/java.util.Arrays.stream(Arrays.java:5614) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...