/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/sumt8.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 18:13:43,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 18:13:43,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 18:13:43,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 18:13:43,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 18:13:43,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 18:13:43,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 18:13:43,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 18:13:43,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 18:13:43,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 18:13:43,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 18:13:43,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 18:13:43,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 18:13:43,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 18:13:43,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 18:13:43,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 18:13:43,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 18:13:43,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 18:13:43,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 18:13:43,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 18:13:43,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 18:13:43,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 18:13:43,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 18:13:43,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 18:13:43,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 18:13:43,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 18:13:43,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 18:13:43,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 18:13:43,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 18:13:43,268 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 18:13:43,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 18:13:43,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 18:13:43,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 18:13:43,270 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 18:13:43,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 18:13:43,270 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 18:13:43,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 18:13:43,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 18:13:43,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 18:13:43,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 18:13:43,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 18:13:43,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 18:13:43,271 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 18:13:43,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 18:13:43,275 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 18:13:43,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 18:13:43,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 18:13:43,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 18:13:43,275 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 18:13:43,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 18:13:43,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 18:13:43,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 18:13:43,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 18:13:43,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 18:13:43,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 18:13:43,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:13:43,277 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 18:13:43,277 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 18:13:43,277 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 18:13:43,571 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 18:13:43,585 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 18:13:43,590 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 18:13:43,592 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 18:13:43,593 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 18:13:43,594 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt8.c [2020-07-20 18:13:43,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/638a4746a/398a3b0d2fc2467bb910e5db5f61db26/FLAG680433144 [2020-07-20 18:13:44,061 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 18:13:44,062 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt8.c [2020-07-20 18:13:44,068 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/638a4746a/398a3b0d2fc2467bb910e5db5f61db26/FLAG680433144 [2020-07-20 18:13:44,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/638a4746a/398a3b0d2fc2467bb910e5db5f61db26 [2020-07-20 18:13:44,489 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 18:13:44,493 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 18:13:44,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 18:13:44,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 18:13:44,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 18:13:44,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:13:44" (1/1) ... [2020-07-20 18:13:44,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee61c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:44, skipping insertion in model container [2020-07-20 18:13:44,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:13:44" (1/1) ... [2020-07-20 18:13:44,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 18:13:44,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 18:13:44,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 18:13:44,696 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 18:13:44,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 18:13:44,736 INFO L208 MainTranslator]: Completed translation [2020-07-20 18:13:44,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:44 WrapperNode [2020-07-20 18:13:44,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 18:13:44,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 18:13:44,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 18:13:44,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 18:13:44,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:44" (1/1) ... [2020-07-20 18:13:44,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:44" (1/1) ... [2020-07-20 18:13:44,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:44" (1/1) ... [2020-07-20 18:13:44,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:44" (1/1) ... [2020-07-20 18:13:44,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:44" (1/1) ... [2020-07-20 18:13:44,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:44" (1/1) ... [2020-07-20 18:13:44,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:44" (1/1) ... [2020-07-20 18:13:44,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 18:13:44,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 18:13:44,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 18:13:44,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 18:13:44,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 18:13:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 18:13:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 18:13:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 18:13:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 18:13:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 18:13:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 18:13:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 18:13:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 18:13:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 18:13:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 18:13:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 18:13:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 18:13:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 18:13:45,270 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 18:13:45,271 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 18:13:45,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:13:45 BoogieIcfgContainer [2020-07-20 18:13:45,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 18:13:45,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 18:13:45,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 18:13:45,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 18:13:45,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 06:13:44" (1/3) ... [2020-07-20 18:13:45,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e38aadd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:13:45, skipping insertion in model container [2020-07-20 18:13:45,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:44" (2/3) ... [2020-07-20 18:13:45,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e38aadd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:13:45, skipping insertion in model container [2020-07-20 18:13:45,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:13:45" (3/3) ... [2020-07-20 18:13:45,284 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt8.c [2020-07-20 18:13:45,296 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 18:13:45,304 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 18:13:45,321 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 18:13:45,351 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 18:13:45,351 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 18:13:45,351 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 18:13:45,351 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 18:13:45,351 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 18:13:45,352 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 18:13:45,352 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 18:13:45,352 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 18:13:45,382 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-07-20 18:13:45,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-20 18:13:45,393 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:13:45,394 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:13:45,395 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:13:45,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:13:45,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1078562183, now seen corresponding path program 1 times [2020-07-20 18:13:45,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:13:45,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625558154] [2020-07-20 18:13:45,414 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:13:45,589 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 18:13:45,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:13:45,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 25 conjunts are in the unsatisfiable core [2020-07-20 18:13:45,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:13:45,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 18:13:45,799 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:13:45,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625558154] [2020-07-20 18:13:45,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:13:45,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-20 18:13:45,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000934858] [2020-07-20 18:13:45,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 18:13:45,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:13:45,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 18:13:45,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-20 18:13:45,827 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 7 states. [2020-07-20 18:13:46,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:13:46,070 INFO L93 Difference]: Finished difference Result 71 states and 105 transitions. [2020-07-20 18:13:46,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 18:13:46,072 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-07-20 18:13:46,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:13:46,083 INFO L225 Difference]: With dead ends: 71 [2020-07-20 18:13:46,083 INFO L226 Difference]: Without dead ends: 39 [2020-07-20 18:13:46,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-07-20 18:13:46,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-07-20 18:13:46,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-07-20 18:13:46,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-20 18:13:46,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2020-07-20 18:13:46,135 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 14 [2020-07-20 18:13:46,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:13:46,136 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2020-07-20 18:13:46,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 18:13:46,136 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2020-07-20 18:13:46,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-20 18:13:46,137 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:13:46,138 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:13:46,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:13:46,353 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:13:46,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:13:46,354 INFO L82 PathProgramCache]: Analyzing trace with hash -858115487, now seen corresponding path program 1 times [2020-07-20 18:13:46,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:13:46,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067603749] [2020-07-20 18:13:46,355 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:13:46,410 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 18:13:46,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:13:46,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 29 conjunts are in the unsatisfiable core [2020-07-20 18:13:46,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:13:46,686 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 18:13:46,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 18:13:46,734 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 18:13:46,942 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 18:13:46,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067603749] [2020-07-20 18:13:46,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 18:13:46,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 11 [2020-07-20 18:13:46,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947703073] [2020-07-20 18:13:46,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 18:13:46,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:13:46,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 18:13:46,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-07-20 18:13:46,948 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand 6 states. [2020-07-20 18:14:05,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:14:05,748 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2020-07-20 18:14:05,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 18:14:05,749 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-07-20 18:14:05,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:14:05,751 INFO L225 Difference]: With dead ends: 55 [2020-07-20 18:14:05,751 INFO L226 Difference]: Without dead ends: 53 [2020-07-20 18:14:05,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-07-20 18:14:05,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-07-20 18:14:05,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-07-20 18:14:05,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-07-20 18:14:05,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2020-07-20 18:14:05,763 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 28 [2020-07-20 18:14:05,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:14:05,764 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2020-07-20 18:14:05,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 18:14:05,764 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2020-07-20 18:14:05,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-20 18:14:05,766 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:14:05,766 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:14:05,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:14:05,978 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:14:05,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:14:05,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1617304246, now seen corresponding path program 1 times [2020-07-20 18:14:05,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:14:05,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803223430] [2020-07-20 18:14:05,980 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:14:06,025 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 18:14:06,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:14:06,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 27 conjunts are in the unsatisfiable core [2020-07-20 18:14:06,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:14:06,098 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 18:14:06,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 18:14:14,488 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 9 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 18:14:14,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803223430] [2020-07-20 18:14:14,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 18:14:14,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-07-20 18:14:14,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850648007] [2020-07-20 18:14:14,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 18:14:14,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:14:14,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 18:14:14,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=54, Unknown=4, NotChecked=0, Total=90 [2020-07-20 18:14:14,491 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand 10 states. [2020-07-20 18:14:16,732 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod (+ c_main_~l~0 2) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod c_main_~l~0 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 1) 4294967296) 7) 4294967296))) is different from false [2020-07-20 18:14:18,819 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod c_main_~l~0 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 1) 4294967296) 7) 4294967296))) is different from false [2020-07-20 18:15:55,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:15:55,869 INFO L93 Difference]: Finished difference Result 99 states and 138 transitions. [2020-07-20 18:15:55,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 18:15:55,931 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-07-20 18:15:55,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:15:55,934 INFO L225 Difference]: With dead ends: 99 [2020-07-20 18:15:55,935 INFO L226 Difference]: Without dead ends: 69 [2020-07-20 18:15:55,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=36, Invalid=56, Unknown=6, NotChecked=34, Total=132 [2020-07-20 18:15:55,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-07-20 18:15:55,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2020-07-20 18:15:55,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-07-20 18:15:55,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 84 transitions. [2020-07-20 18:15:55,953 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 84 transitions. Word has length 37 [2020-07-20 18:15:55,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:15:55,953 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 84 transitions. [2020-07-20 18:15:55,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 18:15:55,954 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 84 transitions. [2020-07-20 18:15:55,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-20 18:15:55,955 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:15:55,955 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:15:56,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:15:56,169 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:15:56,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:15:56,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1066251509, now seen corresponding path program 1 times [2020-07-20 18:15:56,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:15:56,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1723038114] [2020-07-20 18:15:56,171 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:15:56,228 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 18:15:56,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:15:56,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 33 conjunts are in the unsatisfiable core [2020-07-20 18:15:56,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:15:56,489 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 18:15:56,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 18:15:56,515 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 18:16:09,217 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 0 refuted. 6 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-20 18:16:09,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1723038114] [2020-07-20 18:16:09,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 18:16:09,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 16 [2020-07-20 18:16:09,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875729127] [2020-07-20 18:16:09,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-20 18:16:09,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:16:09,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-20 18:16:09,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=184, Unknown=5, NotChecked=0, Total=240 [2020-07-20 18:16:09,220 INFO L87 Difference]: Start difference. First operand 68 states and 84 transitions. Second operand 16 states. [2020-07-20 18:16:42,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:16:42,702 INFO L93 Difference]: Finished difference Result 98 states and 129 transitions. [2020-07-20 18:16:42,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-20 18:16:42,703 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 42 [2020-07-20 18:16:42,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:16:42,705 INFO L225 Difference]: With dead ends: 98 [2020-07-20 18:16:42,706 INFO L226 Difference]: Without dead ends: 76 [2020-07-20 18:16:42,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=55, Invalid=212, Unknown=5, NotChecked=0, Total=272 [2020-07-20 18:16:42,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-07-20 18:16:42,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-07-20 18:16:42,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-20 18:16:42,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 91 transitions. [2020-07-20 18:16:42,718 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 91 transitions. Word has length 42 [2020-07-20 18:16:42,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:16:42,719 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 91 transitions. [2020-07-20 18:16:42,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-20 18:16:42,719 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 91 transitions. [2020-07-20 18:16:42,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-20 18:16:42,721 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:16:42,721 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:16:42,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:16:42,924 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:16:42,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:16:42,925 INFO L82 PathProgramCache]: Analyzing trace with hash -52130443, now seen corresponding path program 1 times [2020-07-20 18:16:42,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:16:42,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [918995305] [2020-07-20 18:16:42,926 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:16:42,979 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 18:16:42,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:16:42,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 35 conjunts are in the unsatisfiable core [2020-07-20 18:16:42,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:16:43,116 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 16 proven. 51 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-20 18:16:43,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 18:17:01,945 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 16 proven. 34 refuted. 17 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-20 18:17:01,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [918995305] [2020-07-20 18:17:01,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 18:17:01,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 16 [2020-07-20 18:17:01,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293177393] [2020-07-20 18:17:01,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-20 18:17:01,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:17:01,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-20 18:17:01,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=158, Unknown=9, NotChecked=0, Total=240 [2020-07-20 18:17:01,948 INFO L87 Difference]: Start difference. First operand 76 states and 91 transitions. Second operand 16 states. [2020-07-20 18:17:04,303 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod (+ c_main_~l~0 3) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod c_main_~l~0 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 4) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 1) 4294967296) 7) 4294967296))) is different from false [2020-07-20 18:17:06,368 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod (+ c_main_~l~0 3) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod c_main_~l~0 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 1) 4294967296) 7) 4294967296))) is different from false [2020-07-20 18:17:08,443 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod (+ c_main_~l~0 3) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 1) 4294967296) 7) 4294967296))) is different from false [2020-07-20 18:18:25,474 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod c_main_~l~0 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 2) 4294967296) 7) 4294967296))) is different from false [2020-07-20 18:20:27,332 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod c_main_~l~0 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 1) 4294967296) 7) 4294967296))) is different from false [2020-07-20 18:20:56,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:20:56,718 INFO L93 Difference]: Finished difference Result 140 states and 194 transitions. [2020-07-20 18:20:56,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-20 18:20:56,823 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 64 [2020-07-20 18:20:56,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:20:56,825 INFO L225 Difference]: With dead ends: 140 [2020-07-20 18:20:56,825 INFO L226 Difference]: Without dead ends: 110 [2020-07-20 18:20:56,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 29.3s TimeCoverageRelationStatistics Valid=83, Invalid=163, Unknown=14, NotChecked=160, Total=420 [2020-07-20 18:20:56,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-07-20 18:20:56,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109. [2020-07-20 18:20:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-07-20 18:20:56,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 142 transitions. [2020-07-20 18:20:56,854 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 142 transitions. Word has length 64 [2020-07-20 18:20:56,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:20:56,855 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 142 transitions. [2020-07-20 18:20:56,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-20 18:20:56,855 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 142 transitions. [2020-07-20 18:20:56,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-20 18:20:56,857 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:20:56,857 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:20:57,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:20:57,060 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:20:57,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:20:57,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1890085349, now seen corresponding path program 1 times [2020-07-20 18:20:57,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:20:57,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981180195] [2020-07-20 18:20:57,062 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:20:57,128 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 18:20:57,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:20:57,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 41 conjunts are in the unsatisfiable core [2020-07-20 18:20:57,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:20:57,549 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 8 proven. 68 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-20 18:20:57,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 18:20:57,590 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 18:21:55,338 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 26 proven. 0 refuted. 41 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-20 18:21:55,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981180195] [2020-07-20 18:21:55,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 18:21:55,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 23 [2020-07-20 18:21:55,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514037061] [2020-07-20 18:21:55,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-07-20 18:21:55,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:21:55,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-07-20 18:21:55,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=393, Unknown=20, NotChecked=0, Total=506 [2020-07-20 18:21:55,343 INFO L87 Difference]: Start difference. First operand 109 states and 142 transitions. Second operand 23 states. [2020-07-20 18:22:10,780 WARN L193 SmtUtils]: Spent 6.31 s on a formula simplification that was a NOOP. DAG size: 35 [2020-07-20 18:22:25,598 WARN L193 SmtUtils]: Spent 4.23 s on a formula simplification that was a NOOP. DAG size: 24 [2020-07-20 18:23:35,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:23:35,006 INFO L93 Difference]: Finished difference Result 142 states and 191 transitions. [2020-07-20 18:23:35,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-20 18:23:35,007 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 67 [2020-07-20 18:23:35,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:23:35,011 INFO L225 Difference]: With dead ends: 142 [2020-07-20 18:23:35,011 INFO L226 Difference]: Without dead ends: 98 [2020-07-20 18:23:35,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 108 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 88.7s TimeCoverageRelationStatistics Valid=120, Invalid=501, Unknown=29, NotChecked=0, Total=650 [2020-07-20 18:23:35,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-07-20 18:23:35,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 95. [2020-07-20 18:23:35,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-07-20 18:23:35,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 111 transitions. [2020-07-20 18:23:35,024 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 111 transitions. Word has length 67 [2020-07-20 18:23:35,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:23:35,025 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 111 transitions. [2020-07-20 18:23:35,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-07-20 18:23:35,025 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 111 transitions. [2020-07-20 18:23:35,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-20 18:23:35,026 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:23:35,027 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 18:23:35,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:35,231 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:23:35,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:23:35,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1891591146, now seen corresponding path program 1 times [2020-07-20 18:23:35,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:23:35,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974496322] [2020-07-20 18:23:35,233 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:23:35,308 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 18:23:35,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:23:35,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 18:23:35,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:23:35,383 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 24 proven. 117 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-07-20 18:23:35,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 18:24:07,233 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 24 proven. 117 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-07-20 18:24:07,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1974496322] [2020-07-20 18:24:07,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 18:24:07,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-07-20 18:24:07,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553195316] [2020-07-20 18:24:07,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-20 18:24:07,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:24:07,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-20 18:24:07,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=154, Unknown=15, NotChecked=0, Total=240 [2020-07-20 18:24:07,236 INFO L87 Difference]: Start difference. First operand 95 states and 111 transitions. Second operand 16 states. [2020-07-20 18:24:09,574 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod (+ c_main_~l~0 3) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 4) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 5) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 2) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 6) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 1) 4294967296) 7) 4294967296))) is different from false [2020-07-20 18:24:11,671 WARN L860 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod (+ c_main_~l~0 3) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 4) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 5) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 2) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 6) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 1) 4294967296) 7) 4294967296))) is different from true [2020-07-20 18:24:13,740 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod (+ c_main_~l~0 3) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 4) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 5) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 2) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 1) 4294967296) 7) 4294967296))) is different from false [2020-07-20 18:24:15,842 WARN L860 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod (+ c_main_~l~0 3) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 4) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 5) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 2) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 1) 4294967296) 7) 4294967296))) is different from true [2020-07-20 18:24:17,921 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod (+ c_main_~l~0 3) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 4) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 5) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 2) 4294967296) 7) 4294967296))) is different from false [2020-07-20 18:24:20,057 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod (+ c_main_~l~0 3) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 4) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 5) 4294967296) 7) 4294967296))) is different from false [2020-07-20 18:24:22,165 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod (+ c_main_~l~0 4) 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 5) 4294967296) 7) 4294967296))) is different from false [2020-07-20 18:25:16,362 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod c_main_~l~0 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 2) 4294967296) 7) 4294967296))) is different from false [2020-07-20 18:25:20,635 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod c_main_~l~0 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 3) 4294967296) 7) 4294967296))) is different from false [2020-07-20 18:25:24,897 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod c_main_~l~0 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 4) 4294967296) 7) 4294967296))) is different from false [2020-07-20 18:25:27,031 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (mod (mod c_main_~l~0 4294967296) 7) 4294967296)) (< 0 (mod (mod (mod (+ c_main_~l~0 1) 4294967296) 7) 4294967296))) is different from false