/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 17:49:54,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 17:49:54,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 17:49:54,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 17:49:54,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 17:49:54,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 17:49:54,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 17:49:54,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 17:49:54,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 17:49:54,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 17:49:54,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 17:49:54,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 17:49:54,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 17:49:54,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 17:49:54,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 17:49:54,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 17:49:54,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 17:49:54,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 17:49:54,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 17:49:54,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 17:49:54,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 17:49:54,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 17:49:54,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 17:49:54,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 17:49:54,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 17:49:54,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 17:49:54,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 17:49:54,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 17:49:54,780 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 17:49:54,805 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 17:49:54,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 17:49:54,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 17:49:54,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 17:49:54,807 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 17:49:54,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 17:49:54,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 17:49:54,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 17:49:54,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 17:49:54,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 17:49:54,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 17:49:54,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 17:49:54,809 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 17:49:54,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 17:49:54,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 17:49:54,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 17:49:54,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 17:49:54,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 17:49:54,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 17:49:54,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 17:49:54,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 17:49:54,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 17:49:54,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 17:49:54,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 17:49:54,811 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 17:49:54,811 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 17:49:55,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 17:49:55,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 17:49:55,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 17:49:55,241 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 17:49:55,242 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 17:49:55,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c [2021-01-06 17:49:55,314 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d34a82d18/97bb142378904f40a81b709c8c4e63fa/FLAG64249b00d [2021-01-06 17:49:55,956 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 17:49:55,973 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c [2021-01-06 17:49:55,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d34a82d18/97bb142378904f40a81b709c8c4e63fa/FLAG64249b00d [2021-01-06 17:49:56,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/d34a82d18/97bb142378904f40a81b709c8c4e63fa [2021-01-06 17:49:56,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 17:49:56,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 17:49:56,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 17:49:56,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 17:49:56,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 17:49:56,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 05:49:56" (1/1) ... [2021-01-06 17:49:56,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@652c65d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:49:56, skipping insertion in model container [2021-01-06 17:49:56,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 05:49:56" (1/1) ... [2021-01-06 17:49:56,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 17:49:56,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 17:49:56,501 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c[526,539] left hand side expression in assignment: lhs: VariableLHS[~A~0,] left hand side expression in assignment: lhs: VariableLHS[~B~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~d~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~q~0,] left hand side expression in assignment: lhs: VariableLHS[~d~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~d~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~q~0,] [2021-01-06 17:49:56,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 17:49:56,552 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 17:49:56,571 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound1.c[526,539] left hand side expression in assignment: lhs: VariableLHS[~A~0,] left hand side expression in assignment: lhs: VariableLHS[~B~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~d~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~q~0,] left hand side expression in assignment: lhs: VariableLHS[~d~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~d~0,] left hand side expression in assignment: lhs: VariableLHS[~p~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~q~0,] [2021-01-06 17:49:56,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 17:49:56,616 INFO L208 MainTranslator]: Completed translation [2021-01-06 17:49:56,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:49:56 WrapperNode [2021-01-06 17:49:56,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 17:49:56,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 17:49:56,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 17:49:56,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 17:49:56,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:49:56" (1/1) ... [2021-01-06 17:49:56,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:49:56" (1/1) ... [2021-01-06 17:49:56,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 17:49:56,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 17:49:56,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 17:49:56,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 17:49:56,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:49:56" (1/1) ... [2021-01-06 17:49:56,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:49:56" (1/1) ... [2021-01-06 17:49:56,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:49:56" (1/1) ... [2021-01-06 17:49:56,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:49:56" (1/1) ... [2021-01-06 17:49:56,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:49:56" (1/1) ... [2021-01-06 17:49:56,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:49:56" (1/1) ... [2021-01-06 17:49:56,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:49:56" (1/1) ... [2021-01-06 17:49:56,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 17:49:56,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 17:49:56,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 17:49:56,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 17:49:56,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:49:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 17:49:56,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 17:49:56,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 17:49:56,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 17:49:56,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 17:49:57,356 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 17:49:57,356 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-01-06 17:49:57,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:49:57 BoogieIcfgContainer [2021-01-06 17:49:57,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 17:49:57,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 17:49:57,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 17:49:57,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 17:49:57,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 05:49:56" (1/3) ... [2021-01-06 17:49:57,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bfa3e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 05:49:57, skipping insertion in model container [2021-01-06 17:49:57,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:49:56" (2/3) ... [2021-01-06 17:49:57,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bfa3e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 05:49:57, skipping insertion in model container [2021-01-06 17:49:57,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:49:57" (3/3) ... [2021-01-06 17:49:57,382 INFO L111 eAbstractionObserver]: Analyzing ICFG hard2_valuebound1.c [2021-01-06 17:49:57,399 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 17:49:57,411 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2021-01-06 17:49:57,451 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-01-06 17:49:57,485 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 17:49:57,485 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 17:49:57,485 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 17:49:57,485 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 17:49:57,486 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 17:49:57,486 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 17:49:57,486 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 17:49:57,486 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 17:49:57,510 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2021-01-06 17:49:57,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-06 17:49:57,521 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:49:57,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:49:57,524 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:49:57,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:49:57,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-01-06 17:49:57,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:49:57,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879466037] [2021-01-06 17:49:57,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:49:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:49:57,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:49:57,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879466037] [2021-01-06 17:49:57,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:49:57,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 17:49:57,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164682439] [2021-01-06 17:49:57,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 17:49:57,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:49:57,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 17:49:57,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 17:49:57,766 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2021-01-06 17:49:57,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:49:57,790 INFO L93 Difference]: Finished difference Result 75 states and 102 transitions. [2021-01-06 17:49:57,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 17:49:57,792 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2021-01-06 17:49:57,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:49:57,801 INFO L225 Difference]: With dead ends: 75 [2021-01-06 17:49:57,802 INFO L226 Difference]: Without dead ends: 35 [2021-01-06 17:49:57,806 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 17:49:57,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-01-06 17:49:57,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-01-06 17:49:57,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-01-06 17:49:57,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2021-01-06 17:49:57,848 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 7 [2021-01-06 17:49:57,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:49:57,849 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2021-01-06 17:49:57,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 17:49:57,849 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2021-01-06 17:49:57,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-06 17:49:57,850 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:49:57,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:49:57,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 17:49:57,851 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:49:57,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:49:57,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-01-06 17:49:57,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:49:57,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897409011] [2021-01-06 17:49:57,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:49:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:49:57,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:49:57,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897409011] [2021-01-06 17:49:57,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:49:57,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 17:49:57,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744255194] [2021-01-06 17:49:57,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 17:49:57,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:49:57,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 17:49:57,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 17:49:57,939 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 4 states. [2021-01-06 17:49:58,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:49:58,026 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2021-01-06 17:49:58,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 17:49:58,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-01-06 17:49:58,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:49:58,028 INFO L225 Difference]: With dead ends: 54 [2021-01-06 17:49:58,028 INFO L226 Difference]: Without dead ends: 52 [2021-01-06 17:49:58,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 17:49:58,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-01-06 17:49:58,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 33. [2021-01-06 17:49:58,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-01-06 17:49:58,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2021-01-06 17:49:58,039 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 7 [2021-01-06 17:49:58,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:49:58,039 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2021-01-06 17:49:58,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 17:49:58,040 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2021-01-06 17:49:58,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 17:49:58,040 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:49:58,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:49:58,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 17:49:58,041 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:49:58,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:49:58,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1186787538, now seen corresponding path program 1 times [2021-01-06 17:49:58,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:49:58,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632721956] [2021-01-06 17:49:58,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:49:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:49:58,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:49:58,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632721956] [2021-01-06 17:49:58,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:49:58,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 17:49:58,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948925940] [2021-01-06 17:49:58,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 17:49:58,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:49:58,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 17:49:58,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 17:49:58,166 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 4 states. [2021-01-06 17:49:58,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:49:58,275 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2021-01-06 17:49:58,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 17:49:58,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-01-06 17:49:58,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:49:58,277 INFO L225 Difference]: With dead ends: 52 [2021-01-06 17:49:58,277 INFO L226 Difference]: Without dead ends: 50 [2021-01-06 17:49:58,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 17:49:58,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-01-06 17:49:58,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 31. [2021-01-06 17:49:58,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-01-06 17:49:58,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2021-01-06 17:49:58,288 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 9 [2021-01-06 17:49:58,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:49:58,288 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2021-01-06 17:49:58,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 17:49:58,289 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2021-01-06 17:49:58,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 17:49:58,289 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:49:58,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:49:58,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 17:49:58,290 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:49:58,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:49:58,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1958320619, now seen corresponding path program 1 times [2021-01-06 17:49:58,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:49:58,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089469445] [2021-01-06 17:49:58,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:49:58,309 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:49:58,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [222682688] [2021-01-06 17:49:58,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 17:49:58,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:49:58,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 21 conjunts are in the unsatisfiable core [2021-01-06 17:49:58,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:49:58,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:49:58,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089469445] [2021-01-06 17:49:58,465 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:49:58,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222682688] [2021-01-06 17:49:58,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:49:58,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 17:49:58,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539812333] [2021-01-06 17:49:58,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 17:49:58,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:49:58,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 17:49:58,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-01-06 17:49:58,468 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 6 states. [2021-01-06 17:49:58,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:49:58,567 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2021-01-06 17:49:58,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 17:49:58,568 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2021-01-06 17:49:58,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:49:58,569 INFO L225 Difference]: With dead ends: 72 [2021-01-06 17:49:58,569 INFO L226 Difference]: Without dead ends: 50 [2021-01-06 17:49:58,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 17:49:58,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-01-06 17:49:58,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 45. [2021-01-06 17:49:58,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-01-06 17:49:58,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2021-01-06 17:49:58,585 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 11 [2021-01-06 17:49:58,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:49:58,585 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2021-01-06 17:49:58,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 17:49:58,586 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2021-01-06 17:49:58,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-01-06 17:49:58,586 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:49:58,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:49:58,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:49:58,801 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:49:58,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:49:58,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1783857492, now seen corresponding path program 1 times [2021-01-06 17:49:58,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:49:58,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085925556] [2021-01-06 17:49:58,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:49:58,817 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:49:58,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [111584618] [2021-01-06 17:49:58,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:49:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:49:58,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 17 conjunts are in the unsatisfiable core [2021-01-06 17:49:58,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:49:58,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:49:58,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085925556] [2021-01-06 17:49:58,907 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:49:58,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111584618] [2021-01-06 17:49:58,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:49:58,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 17:49:58,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184719134] [2021-01-06 17:49:58,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 17:49:58,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:49:58,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 17:49:58,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 17:49:58,909 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 5 states. [2021-01-06 17:49:58,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:49:58,976 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2021-01-06 17:49:58,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 17:49:58,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-01-06 17:49:58,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:49:58,979 INFO L225 Difference]: With dead ends: 63 [2021-01-06 17:49:58,979 INFO L226 Difference]: Without dead ends: 52 [2021-01-06 17:49:58,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 17:49:58,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-01-06 17:49:58,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2021-01-06 17:49:58,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2021-01-06 17:49:58,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2021-01-06 17:49:58,996 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 14 [2021-01-06 17:49:58,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:49:58,996 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2021-01-06 17:49:58,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 17:49:58,997 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2021-01-06 17:49:58,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 17:49:58,998 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:49:58,998 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:49:59,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:49:59,214 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:49:59,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:49:59,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1907209632, now seen corresponding path program 1 times [2021-01-06 17:49:59,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:49:59,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650278566] [2021-01-06 17:49:59,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:49:59,229 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:49:59,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1172919522] [2021-01-06 17:49:59,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:49:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:49:59,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 32 conjunts are in the unsatisfiable core [2021-01-06 17:49:59,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:49:59,468 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 17:49:59,486 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:49:59,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650278566] [2021-01-06 17:49:59,487 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:49:59,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172919522] [2021-01-06 17:49:59,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:49:59,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-01-06 17:49:59,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759311102] [2021-01-06 17:49:59,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 17:49:59,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:49:59,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 17:49:59,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-01-06 17:49:59,490 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand 9 states. [2021-01-06 17:49:59,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:49:59,923 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2021-01-06 17:49:59,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 17:49:59,924 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2021-01-06 17:49:59,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:49:59,925 INFO L225 Difference]: With dead ends: 72 [2021-01-06 17:49:59,925 INFO L226 Difference]: Without dead ends: 62 [2021-01-06 17:49:59,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-06 17:49:59,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-01-06 17:49:59,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2021-01-06 17:49:59,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2021-01-06 17:49:59,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 64 transitions. [2021-01-06 17:49:59,936 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 64 transitions. Word has length 18 [2021-01-06 17:49:59,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:49:59,936 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 64 transitions. [2021-01-06 17:49:59,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 17:49:59,937 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2021-01-06 17:49:59,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 17:49:59,937 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:49:59,938 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-01-06 17:50:00,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:50:00,152 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:50:00,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:50:00,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1115495499, now seen corresponding path program 2 times [2021-01-06 17:50:00,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:50:00,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855694951] [2021-01-06 17:50:00,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:50:00,167 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:50:00,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1863396350] [2021-01-06 17:50:00,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:50:00,234 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 17:50:00,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:50:00,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2021-01-06 17:50:00,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:50:00,408 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:50:00,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855694951] [2021-01-06 17:50:00,409 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:50:00,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863396350] [2021-01-06 17:50:00,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:50:00,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 17:50:00,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898377766] [2021-01-06 17:50:00,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 17:50:00,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:50:00,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 17:50:00,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 17:50:00,411 INFO L87 Difference]: Start difference. First operand 58 states and 64 transitions. Second operand 6 states. [2021-01-06 17:50:00,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:50:00,584 INFO L93 Difference]: Finished difference Result 109 states and 122 transitions. [2021-01-06 17:50:00,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 17:50:00,585 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2021-01-06 17:50:00,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:50:00,586 INFO L225 Difference]: With dead ends: 109 [2021-01-06 17:50:00,586 INFO L226 Difference]: Without dead ends: 74 [2021-01-06 17:50:00,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-01-06 17:50:00,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-01-06 17:50:00,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 49. [2021-01-06 17:50:00,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-01-06 17:50:00,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2021-01-06 17:50:00,595 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 25 [2021-01-06 17:50:00,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:50:00,596 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2021-01-06 17:50:00,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 17:50:00,596 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2021-01-06 17:50:00,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-01-06 17:50:00,597 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:50:00,597 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:50:00,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:50:00,813 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:50:00,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:50:00,814 INFO L82 PathProgramCache]: Analyzing trace with hash 115055918, now seen corresponding path program 1 times [2021-01-06 17:50:00,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:50:00,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763562481] [2021-01-06 17:50:00,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:50:00,827 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:50:00,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [17322601] [2021-01-06 17:50:00,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:50:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:50:00,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 35 conjunts are in the unsatisfiable core [2021-01-06 17:50:00,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:50:01,041 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:50:01,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763562481] [2021-01-06 17:50:01,042 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:50:01,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17322601] [2021-01-06 17:50:01,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:50:01,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-01-06 17:50:01,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815337003] [2021-01-06 17:50:01,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 17:50:01,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:50:01,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 17:50:01,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-01-06 17:50:01,044 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 7 states. [2021-01-06 17:50:01,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:50:01,217 INFO L93 Difference]: Finished difference Result 94 states and 104 transitions. [2021-01-06 17:50:01,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 17:50:01,218 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2021-01-06 17:50:01,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:50:01,219 INFO L225 Difference]: With dead ends: 94 [2021-01-06 17:50:01,219 INFO L226 Difference]: Without dead ends: 59 [2021-01-06 17:50:01,220 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-06 17:50:01,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-01-06 17:50:01,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 48. [2021-01-06 17:50:01,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2021-01-06 17:50:01,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2021-01-06 17:50:01,229 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 27 [2021-01-06 17:50:01,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:50:01,229 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2021-01-06 17:50:01,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 17:50:01,230 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2021-01-06 17:50:01,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-01-06 17:50:01,231 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:50:01,231 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:50:01,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:50:01,445 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:50:01,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:50:01,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1100255215, now seen corresponding path program 1 times [2021-01-06 17:50:01,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:50:01,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919135749] [2021-01-06 17:50:01,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:50:01,461 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:50:01,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513390792] [2021-01-06 17:50:01,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:50:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:50:01,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 31 conjunts are in the unsatisfiable core [2021-01-06 17:50:01,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:50:01,669 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:50:01,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919135749] [2021-01-06 17:50:01,669 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:50:01,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513390792] [2021-01-06 17:50:01,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:50:01,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-01-06 17:50:01,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248750708] [2021-01-06 17:50:01,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 17:50:01,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:50:01,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 17:50:01,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-01-06 17:50:01,672 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 8 states. [2021-01-06 17:50:01,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:50:01,811 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2021-01-06 17:50:01,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 17:50:01,813 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2021-01-06 17:50:01,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:50:01,814 INFO L225 Difference]: With dead ends: 59 [2021-01-06 17:50:01,814 INFO L226 Difference]: Without dead ends: 33 [2021-01-06 17:50:01,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-06 17:50:01,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-01-06 17:50:01,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-01-06 17:50:01,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-01-06 17:50:01,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2021-01-06 17:50:01,821 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 29 [2021-01-06 17:50:01,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:50:01,821 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2021-01-06 17:50:01,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 17:50:01,822 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2021-01-06 17:50:01,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-01-06 17:50:01,822 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:50:01,823 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:50:02,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:50:02,034 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:50:02,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:50:02,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1492250324, now seen corresponding path program 1 times [2021-01-06 17:50:02,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:50:02,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685804342] [2021-01-06 17:50:02,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:50:02,056 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:50:02,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1062657082] [2021-01-06 17:50:02,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:50:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:50:02,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 37 conjunts are in the unsatisfiable core [2021-01-06 17:50:02,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:50:02,261 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:50:02,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685804342] [2021-01-06 17:50:02,261 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:50:02,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062657082] [2021-01-06 17:50:02,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 17:50:02,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-01-06 17:50:02,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146932748] [2021-01-06 17:50:02,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 17:50:02,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:50:02,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 17:50:02,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-06 17:50:02,264 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 8 states. [2021-01-06 17:50:02,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:50:02,384 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2021-01-06 17:50:02,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 17:50:02,384 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2021-01-06 17:50:02,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:50:02,385 INFO L225 Difference]: With dead ends: 33 [2021-01-06 17:50:02,385 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 17:50:02,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-01-06 17:50:02,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 17:50:02,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 17:50:02,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 17:50:02,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 17:50:02,387 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2021-01-06 17:50:02,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:50:02,387 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 17:50:02,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 17:50:02,387 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 17:50:02,387 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 17:50:02,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-01-06 17:50:02,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-01-06 17:50:02,988 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 29 [2021-01-06 17:50:03,103 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2021-01-06 17:50:03,256 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 35 [2021-01-06 17:50:03,414 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 29 [2021-01-06 17:50:03,564 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 29 [2021-01-06 17:50:03,859 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2021-01-06 17:50:03,863 INFO L192 CegarLoopUtils]: At program point L60(lines 22 61) the Hoare annotation is: true [2021-01-06 17:50:03,864 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-01-06 17:50:03,864 INFO L189 CegarLoopUtils]: For program point L52(lines 52 55) no Hoare annotation was computed. [2021-01-06 17:50:03,864 INFO L189 CegarLoopUtils]: For program point L52-2(lines 22 61) no Hoare annotation was computed. [2021-01-06 17:50:03,864 INFO L189 CegarLoopUtils]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-01-06 17:50:03,864 INFO L189 CegarLoopUtils]: For program point L44-1(lines 44 56) no Hoare annotation was computed. [2021-01-06 17:50:03,864 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-01-06 17:50:03,864 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-01-06 17:50:03,865 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-01-06 17:50:03,865 INFO L189 CegarLoopUtils]: For program point L12(line 12) no Hoare annotation was computed. [2021-01-06 17:50:03,865 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-01-06 17:50:03,865 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-01-06 17:50:03,865 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-01-06 17:50:03,865 INFO L189 CegarLoopUtils]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-01-06 17:50:03,865 INFO L185 CegarLoopUtils]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~r~0 1)) (.cse1 (<= 0 ULTIMATE.start_main_~A~0)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse6 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (let ((.cse3 (div ULTIMATE.start_main_~d~0 2))) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~p~0 2) (<= .cse3 1) .cse4 .cse5 .cse6 (= (* ULTIMATE.start_main_~B~0 2) ULTIMATE.start_main_~d~0) (<= 1 .cse3))) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0) (= ULTIMATE.start_main_~p~0 1) .cse4 .cse5 .cse6 (= ULTIMATE.start_main_~d~0 1)))) [2021-01-06 17:50:03,865 INFO L189 CegarLoopUtils]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-01-06 17:50:03,866 INFO L185 CegarLoopUtils]: At program point L15-5(lines 14 20) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~r~0 1)) (.cse1 (<= 0 ULTIMATE.start_main_~A~0)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse6 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (let ((.cse3 (div ULTIMATE.start_main_~d~0 2))) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~p~0 2) (<= .cse3 1) .cse4 .cse5 .cse6 (= (* ULTIMATE.start_main_~B~0 2) ULTIMATE.start_main_~d~0) (<= 1 .cse3))) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0) (= ULTIMATE.start_main_~p~0 1) .cse4 .cse5 .cse6 (= ULTIMATE.start_main_~d~0 1)))) [2021-01-06 17:50:03,866 INFO L189 CegarLoopUtils]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2021-01-06 17:50:03,866 INFO L185 CegarLoopUtils]: At program point L15-8(line 38) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~r~0 1)) (.cse1 (<= 0 ULTIMATE.start_main_~A~0)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse6 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (let ((.cse3 (div ULTIMATE.start_main_~d~0 2))) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~p~0 2) (<= .cse3 1) .cse4 .cse5 .cse6 (= (* ULTIMATE.start_main_~B~0 2) ULTIMATE.start_main_~d~0) (<= 1 .cse3))) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0) (= ULTIMATE.start_main_~p~0 1) .cse4 .cse5 .cse6 (= ULTIMATE.start_main_~d~0 1)))) [2021-01-06 17:50:03,866 INFO L189 CegarLoopUtils]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2021-01-06 17:50:03,867 INFO L185 CegarLoopUtils]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~A~0)) (.cse4 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse6 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0)) (.cse7 (= ULTIMATE.start_main_~p~0 1)) (.cse3 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (let ((.cse2 (div ULTIMATE.start_main_~d~0 2))) (and (<= ULTIMATE.start_main_~r~0 1) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 2) (<= .cse2 1) .cse3 .cse4 .cse5 (= (* ULTIMATE.start_main_~B~0 2) ULTIMATE.start_main_~d~0) (<= 1 .cse2))) (and (= ULTIMATE.start_main_~q~0 1) .cse0 (<= ULTIMATE.start_main_~A~0 1) .cse1 .cse6 .cse7 .cse4 (= ULTIMATE.start_main_~d~0 1) (= ULTIMATE.start_main_~A~0 (+ ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~r~0))) (and (= ULTIMATE.start_main_~B~0 1) .cse1 .cse6 .cse7 .cse3 .cse5))) [2021-01-06 17:50:03,867 INFO L189 CegarLoopUtils]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2021-01-06 17:50:03,867 INFO L185 CegarLoopUtils]: At program point L15-14(line 48) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~A~0)) (.cse4 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse6 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0)) (.cse7 (= ULTIMATE.start_main_~p~0 1)) (.cse3 (= ULTIMATE.start_main_~q~0 0)) (.cse5 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (let ((.cse2 (div ULTIMATE.start_main_~d~0 2))) (and (<= ULTIMATE.start_main_~r~0 1) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 2) (<= .cse2 1) .cse3 .cse4 .cse5 (= (* ULTIMATE.start_main_~B~0 2) ULTIMATE.start_main_~d~0) (<= 1 .cse2))) (and (= ULTIMATE.start_main_~q~0 1) .cse0 (<= ULTIMATE.start_main_~A~0 1) .cse1 .cse6 .cse7 .cse4 (= ULTIMATE.start_main_~d~0 1) (= ULTIMATE.start_main_~A~0 (+ ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~r~0))) (and (= ULTIMATE.start_main_~B~0 1) .cse1 .cse6 .cse7 .cse3 .cse5))) [2021-01-06 17:50:03,867 INFO L189 CegarLoopUtils]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2021-01-06 17:50:03,867 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2021-01-06 17:50:03,868 INFO L185 CegarLoopUtils]: At program point L15-17(lines 14 20) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~B~0 1)) (.cse1 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (.cse2 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0)) (.cse3 (= ULTIMATE.start_main_~p~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~q~0 0)) (and .cse0 (<= 0 ULTIMATE.start_main_~A~0) .cse1 (<= ULTIMATE.start_main_~A~0 1) .cse2 .cse3 (= ULTIMATE.start_assume_abort_if_not_~cond 1)))) [2021-01-06 17:50:03,868 INFO L189 CegarLoopUtils]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2021-01-06 17:50:03,868 INFO L192 CegarLoopUtils]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2021-01-06 17:50:03,869 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-01-06 17:50:03,870 INFO L189 CegarLoopUtils]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-01-06 17:50:03,870 INFO L189 CegarLoopUtils]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-01-06 17:50:03,871 INFO L189 CegarLoopUtils]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2021-01-06 17:50:03,871 INFO L189 CegarLoopUtils]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2021-01-06 17:50:03,872 INFO L189 CegarLoopUtils]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2021-01-06 17:50:03,872 INFO L189 CegarLoopUtils]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2021-01-06 17:50:03,872 INFO L189 CegarLoopUtils]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2021-01-06 17:50:03,872 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-01-06 17:50:03,872 INFO L185 CegarLoopUtils]: At program point L34-2(lines 34 42) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~r~0 1)) (.cse1 (<= 0 ULTIMATE.start_main_~A~0)) (.cse3 (= ULTIMATE.start_main_~q~0 0)) (.cse4 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse5 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (let ((.cse2 (div ULTIMATE.start_main_~d~0 2))) (and .cse0 .cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~p~0 2) (<= .cse2 1) .cse3 .cse4 .cse5 (= (* ULTIMATE.start_main_~B~0 2) ULTIMATE.start_main_~d~0) (<= 1 .cse2))) (and .cse0 .cse1 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~d~0) (= ULTIMATE.start_main_~p~0 1) .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~d~0 1)))) [2021-01-06 17:50:03,872 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-01-06 17:50:03,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 05:50:03 BoogieIcfgContainer [2021-01-06 17:50:03,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 17:50:03,924 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 17:50:03,924 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 17:50:03,924 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 17:50:03,925 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:49:57" (3/4) ... [2021-01-06 17:50:03,929 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 17:50:03,943 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-01-06 17:50:03,943 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 17:50:03,943 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 17:50:03,944 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 17:50:03,999 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench-scaling/hard2_valuebound1.c-witness.graphml [2021-01-06 17:50:03,999 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 17:50:04,000 INFO L168 Benchmark]: Toolchain (without parser) took 7708.17 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 133.0 MB in the beginning and 175.6 MB in the end (delta: -42.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 8.0 GB. [2021-01-06 17:50:04,001 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 17:50:04,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.38 ms. Allocated memory is still 151.0 MB. Free memory was 133.0 MB in the beginning and 122.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-01-06 17:50:04,002 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.66 ms. Allocated memory is still 151.0 MB. Free memory was 122.9 MB in the beginning and 121.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 17:50:04,003 INFO L168 Benchmark]: Boogie Preprocessor took 25.22 ms. Allocated memory is still 151.0 MB. Free memory was 121.2 MB in the beginning and 120.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 17:50:04,003 INFO L168 Benchmark]: RCFGBuilder took 659.69 ms. Allocated memory is still 151.0 MB. Free memory was 120.1 MB in the beginning and 118.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 4.1 MB. Max. memory is 8.0 GB. [2021-01-06 17:50:04,004 INFO L168 Benchmark]: TraceAbstraction took 6558.48 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 118.1 MB in the beginning and 178.8 MB in the end (delta: -60.7 MB). Peak memory consumption was 114.3 MB. Max. memory is 8.0 GB. [2021-01-06 17:50:04,005 INFO L168 Benchmark]: Witness Printer took 75.17 ms. Allocated memory is still 218.1 MB. Free memory was 178.8 MB in the beginning and 175.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 17:50:04,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 323.38 ms. Allocated memory is still 151.0 MB. Free memory was 133.0 MB in the beginning and 122.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 54.66 ms. Allocated memory is still 151.0 MB. Free memory was 122.9 MB in the beginning and 121.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 25.22 ms. Allocated memory is still 151.0 MB. Free memory was 121.2 MB in the beginning and 120.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 659.69 ms. Allocated memory is still 151.0 MB. Free memory was 120.1 MB in the beginning and 118.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 4.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6558.48 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 118.1 MB in the beginning and 178.8 MB in the end (delta: -60.7 MB). Peak memory consumption was 114.3 MB. Max. memory is 8.0 GB. * Witness Printer took 75.17 ms. Allocated memory is still 218.1 MB. Free memory was 178.8 MB in the beginning and 175.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((r <= 1 && 0 <= A) && 1 == cond) && p == 2) && d / 2 <= 1) && q == 0) && cond == 1) && A == r) && B * 2 == d) && 1 <= d / 2) || ((((((((r <= 1 && 0 <= A) && 1 == cond) && B == d) && p == 1) && q == 0) && cond == 1) && A == r) && d == 1) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((((r <= 1 && 0 <= A) && 1 == cond) && p == 2) && d / 2 <= 1) && q == 0) && cond == 1) && A == r) && B * 2 == d) && 1 <= d / 2) || (((((((r <= 1 && 0 <= A) && B == d) && p == 1) && q == 0) && cond == 1) && A == r) && d == 1) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: ((((((((((r <= 1 && 0 <= A) && 1 == cond) && p == 2) && d / 2 <= 1) && q == 0) && cond == 1) && A == r) && B * 2 == d) && 1 <= d / 2) || ((((((((q == 1 && 0 <= A) && A <= 1) && 1 == cond) && B == d) && p == 1) && cond == 1) && d == 1) && A == B + r)) || (((((B == 1 && 1 == cond) && B == d) && p == 1) && q == 0) && A == r) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((((((((r <= 1 && 0 <= A) && 1 == cond) && p == 2) && d / 2 <= 1) && q == 0) && cond == 1) && A == r) && B * 2 == d) && 1 <= d / 2) || ((((((((r <= 1 && 0 <= A) && 1 == cond) && B == d) && p == 1) && q == 0) && cond == 1) && A == r) && d == 1) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((r <= 1 && 0 <= A) && 1 == cond) && p == 2) && d / 2 <= 1) && q == 0) && cond == 1) && A == r) && B * 2 == d) && 1 <= d / 2) || ((((((((r <= 1 && 0 <= A) && 1 == cond) && B == d) && p == 1) && q == 0) && cond == 1) && A == r) && d == 1) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((B == 1 && !(0 == cond)) && B == d) && p == 1) && q == 0) || ((((((B == 1 && 0 <= A) && !(0 == cond)) && A <= 1) && B == d) && p == 1) && cond == 1) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((((r <= 1 && 0 <= A) && 1 == cond) && p == 2) && d / 2 <= 1) && q == 0) && cond == 1) && A == r) && B * 2 == d) && 1 <= d / 2) || ((((((((q == 1 && 0 <= A) && A <= 1) && 1 == cond) && B == d) && p == 1) && cond == 1) && d == 1) && A == B + r)) || (((((B == 1 && 1 == cond) && B == d) && p == 1) && q == 0) && A == r) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 219 SDtfs, 446 SDslu, 307 SDs, 0 SdLazy, 600 SolverSat, 132 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 89 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 30 NumberOfFragments, 478 HoareAnnotationTreeSize, 9 FomulaSimplifications, 1337 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 341 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 169 ConstructedInterpolants, 0 QuantifiedInterpolants, 39072 SizeOfPredicates, 63 NumberOfNonLiveVariables, 690 ConjunctsInSsa, 183 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 19/57 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...